Essay on Global Warming – Causes and Solutions
500+ words essay on global warming.
Global Warming is a term almost everyone is familiar with. But, its meaning is still not clear to most of us. So, Global warming refers to the gradual rise in the overall temperature of the atmosphere of the Earth. There are various activities taking place which have been increasing the temperature gradually. Global warming is melting our ice glaciers rapidly. This is extremely harmful to the earth as well as humans. It is quite challenging to control global warming; however, it is not unmanageable. The first step in solving any problem is identifying the cause of the problem. Therefore, we need to first understand the causes of global warming that will help us proceed further in solving it. In this essay on Global Warming, we will see the causes and solutions of Global Warming.
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Causes of Global Warming
Global warming has become a grave problem which needs undivided attention. It is not happening because of a single cause but several causes. These causes are both natural as well as manmade. The natural causes include the release of greenhouses gases which are not able to escape from earth, causing the temperature to increase.
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Further, volcanic eruptions are also responsible for global warming. That is to say, these eruptions release tons of carbon dioxide which contributes to global warming. Similarly, methane is also one big issue responsible for global warming.
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So, when one of the biggest sources of absorption of carbon dioxide will only disappear, there will be nothing left to regulate the gas. Thus, it will result in global warming. Steps must be taken immediately to stop global warming and make the earth better again.
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Global Warming Solutions
As stated earlier, it might be challenging but it is not entirely impossible. Global warming can be stopped when combined efforts are put in. For that, individuals and governments, both have to take steps towards achieving it. We must begin with the reduction of greenhouse gas.
Furthermore, they need to monitor the consumption of gasoline. Switch to a hybrid car and reduce the release of carbon dioxide. Moreover, citizens can choose public transport or carpool together. Subsequently, recycling must also be encouraged.
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For instance, when you go shopping, carry your own cloth bag. Another step you can take is to limit the use of electricity which will prevent the release of carbon dioxide. On the government’s part, they must regulate industrial waste and ban them from emitting harmful gases in the air. Deforestation must be stopped immediately and planting of trees must be encouraged.
In short, all of us must realize the fact that our earth is not well. It needs to treatment and we can help it heal. The present generation must take up the responsibility of stopping global warming in order to prevent the suffering of future generations. Therefore, every little step, no matter how small carries a lot of weight and is quite significant in stopping global warming.
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FAQs on Global Warming
Q.1 List the causes of Global Warming.
A.1 There are various causes of global warming both natural and manmade. The natural one includes a greenhouse gas, volcanic eruption, methane gas and more. Next up, manmade causes are deforestation, mining, cattle rearing, fossil fuel burning and more.
Q.2 How can one stop Global Warming?
A.2 Global warming can be stopped by a joint effort by the individuals and the government. Deforestation must be banned and trees should be planted more. The use of automobiles must be limited and recycling must be encouraged.
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Rising sea levels. Raging storms. Searing heat. Ferocious fires. Severe drought. Punishing floods. The effects of climate change are already threatening our health, our communities, our economy, our security, and our children’s future.
What can you do? A whole lot, as it turns out. Americans, on average, produce 21 tons of carbon a year, about four times the global average. Personal action is, of course, no substitute for meaningful government policies. We still must limit carbon pollution and aggressively move away from dirty fossil fuels toward cleaner power.
But it’s important to remember the equally vital contributions that can be made by private citizens—which is to say, by you. “Change only happens when individuals take action,” says clean energy advocate Aliya Haq. “There’s no other way, if it doesn’t start with people.”
Here are a dozen easy, effective ways each one of us can make a difference.
1. Speak up!
What’s the single biggest way you can make an impact on global climate change? “Talk to your friends and family, and make sure your representatives are making good decisions,” Haq says. By voicing your concerns—via social media or, better yet, directly to your elected officials —you send a message that you care about the warming world. Encourage Congress to enact new laws that limit carbon emissions and require polluters to pay for the emissions they produce. “The main reason elected officials do anything difficult is because their constituents make them,” Haq says. You can help protect public lands, stop offshore drilling, and more here .
2. Power your home with renewable energy.
Choose a utility company that generates at least half its power from wind or solar and has been certified by Green-e Energy , an organization that vets renewable energy options. If that isn’t possible for you, take a look at your electric bill; many utilities now list other ways to support renewable sources on their monthly statements and websites.
3. Weatherize, weatherize, weatherize.
“Building heating and cooling are among the biggest uses of energy,” Haq says. Indeed, heating and air-conditioning account for almost half of home energy use. You can make your space more energy efficient by sealing drafts and ensuring it’s adequately insulated. You can also claim federal tax credits for many energy efficiency home improvements. To help you figure out where to start, you could also get a home energy audit, which some utilities offer free of charge. (Alternatively, you can hire a professional to come to your home and perform one; the Inflation Reduction Act offers a partial tax credit for this.) The EPA’s Home Energy Yardstick gives you a simple assessment of your home’s annual energy use compared with similar homes.
4. Invest in energy-efficient appliances.
Since they were first implemented nationally in 1987, efficiency standards for dozens of appliances and products have kept 2.3 billion tons of carbon dioxide out of the air. That’s about the same amount as the annual carbon pollution coughed up by nearly 440 million cars. “Energy efficiency is the lowest-cost way to reduce emissions,” Haq says. When shopping for refrigerators, washing machines, heat pump water heaters , and other appliances, look for the Energy Star label. It will tell you which are the most efficient. (There may also be rebates to earn from your purchase of Energy Star–certified products.)
And when you’re ready to swap out your old machines, don’t just put them on the curb: Recycling an old refrigerator through the EPA’s Responsible Appliance Disposal Program can prevent an additional 10,000 pounds of carbon pollution because the global-warming pollutants in the refrigerants and foam would be properly captured rather than vented to the air.
5. Reduce water waste.
Saving water reduces carbon pollution, too. That's because it takes a lot of energy to pump, heat, and treat your water. So take shorter showers, turn off the tap while brushing your teeth, and switch to WaterSense -labeled fixtures and appliances. The EPA estimates that if just one out of every 100 American homes were retrofitted with water-efficient fixtures, about 100 million kilowatt-hours of electricity per year would be saved—avoiding 80,000 tons of global warming pollution .
6. Actually eat the food you buy—and compost what you can’t.
Approximately 10 percent of U.S. energy use goes into growing, processing, packaging, and shipping food—about 40 percent of which winds up in the landfill. “If you’re wasting less food, you’re likely cutting down on energy consumption,” Haq says. As for the scraps you can’t eat or the leftovers you don’t get to, collect them in a compost bin instead of sending them to the landfill where they release methane. Recycling food and other organic waste into compost provides a range of environmental benefits, including improving soil health, reducing greenhouse gas emissions, recycling nutrients, and mitigating the impact of droughts.
7. Buy better bulbs.
LED light bulbs use one-sixth the amount of energy to deliver the same amount of light as conventional incandescents and last at least 10 times longer. They’re also cheaper in the long run: A 10-watt LED that replaces your traditional 60-watt bulb will save you $125 over the light bulb’s life. And because the average American home has around 40 to 50 light bulbs, this is a simple swap that will reap huge rewards. If every household in the United States replaced just one incandescent with an Energy Star–labeled LED, we would prevent seven billion pounds of carbon pollution per year. That’s equivalent to the emissions of about 648,000 cars.
8. Pull the plug(s).
Taken together, the outlets in your home are likely powering about 65 devices—an average load for a home in the United States. Audio and video devices, cordless vacuums and power tools, and other electronics use energy even when they're not charging. This "idle load" across all U.S. households adds up to the output of 50 large power plants in the country . So don't leave fully charged devices plugged into your home's outlets, unplug rarely used devices or plug them into power strips and timers, and adjust your computers and monitors to automatically power down to the lowest power mode when not in use.
9. Drive a fuel-efficient vehicle.
Gas-smart cars, such as hybrids and fully electric vehicles, save fuel and money . And once all cars and light trucks meet 2025’s clean car standards, which means averaging 54.5 miles per gallon, they’ll be a mainstay. For good reason: Relative to a national fleet of vehicles that averaged only 28.3 miles per gallon in 2011, Americans will spend $80 billion less at the pump each year and cut their automotive emissions by half. Before you buy a new set of wheels, compare fuel-economy performance here .
10. Maintain your ride.
If all Americans kept their tires properly inflated, we could save 1.2 billion gallons of gas each year. A simple tune-up can boost miles per gallon anywhere from 4 percent to 40 percent, and a new air filter can get you a 10 percent boost. Also, remove unnecessary accessories from your car roof. Roof racks and clamshell storage containers can reduce fuel efficiency by as much as 5 percent.
11. Rethink planes, trains, and automobiles.
Choosing to live in walkable smart-growth cities and towns with quality public transportation leads to less driving, less money spent on fuel, and less pollution in the air . Less frequent flying can make a big difference, too. “Air transport is a major source of climate pollution,” Haq says. “If you can take a train instead, do that.” If you must fly, consider purchasing carbon offsets to counterbalance the hefty carbon pollution associated with flying. But not all carbon offset companies are alike. Do your homework to find the best supplier.
12. Reduce, reuse, and recycle.
In the United States, the average person generates 4.5 pounds of trash every day. Fortunately, not all the items we discard end up in landfills; we recycle or compost more than one-third of our trash. In 2014 this saved carbon emissions equivalent to the yearly output of 38 million passenger cars . But we could be doing so much more. “ Reduce should always be the number-one priority,” says NRDC senior resource specialist Darby Hoover . And to reap the environmental benefits of “recyclable” goods, you must recycle according to the rules of your municipality, since systems vary widely by location . Search your municipality’s sanitation department (or equivalent) webpage to learn exactly what you can place in the recycling bin, as counties and cities often differ in what they accept.
This story was originally published on April 20, 2022 and has been updated with new information and links.
This NRDC.org story is available for online republication by news media outlets or nonprofits under these conditions: The writer(s) must be credited with a byline; you must note prominently that the story was originally published by NRDC.org and link to the original; the story cannot be edited (beyond simple things such as grammar); you can’t resell the story in any form or grant republishing rights to other outlets; you can’t republish our material wholesale or automatically—you need to select stories individually; you can’t republish the photos or graphics on our site without specific permission; you should drop us a note to let us know when you’ve used one of our stories.
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10 Solutions for Climate Change
Ten possibilities for staving off catastrophic climate change
By David Biello
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The enormity of global warming can be daunting and dispiriting. What can one person, or even one nation, do on their own to slow and reverse climate change ? But just as ecologist Stephen Pacala and physicist Robert Socolow, both at Princeton University, came up with 15 so-called " wedges " for nations to utilize toward this goal—each of which is challenging but feasible and, in some combination, could reduce greenhouse gas emissions to safer levels —there are personal lifestyle changes that you can make too that, in some combination, can help reduce your carbon impact. Not all are right for everybody. Some you may already be doing or absolutely abhor. But implementing just a few of them could make a difference.
Forego Fossil Fuels —The first challenge is eliminating the burning of coal , oil and, eventually, natural gas. This is perhaps the most daunting challenge as denizens of richer nations literally eat, wear, work, play and even sleep on the products made from such fossilized sunshine. And citizens of developing nations want and arguably deserve the same comforts, which are largely thanks to the energy stored in such fuels.
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Oil is the lubricant of the global economy, hidden inside such ubiquitous items as plastic and corn, and fundamental to the transportation of both consumers and goods. Coal is the substrate, supplying roughly half of the electricity used in the U.S. and nearly that much worldwide—a percentage that is likely to grow, according to the International Energy Agency. There are no perfect solutions for reducing dependence on fossil fuels (for example, carbon neutral biofuels can drive up the price of food and lead to forest destruction, and while nuclear power does not emit greenhouse gases, it does produce radioactive waste), but every bit counts.
So try to employ alternatives when possible—plant-derived plastics, biodiesel, wind power—and to invest in the change, be it by divesting from oil stocks or investing in companies practicing carbon capture and storage.
Infrastructure Upgrade —Buildings worldwide contribute around one third of all greenhouse gas emissions (43 percent in the U.S. alone), even though investing in thicker insulation and other cost-effective, temperature-regulating steps can save money in the long run. Electric grids are at capacity or overloaded, but power demands continue to rise. And bad roads can lower the fuel economy of even the most efficient vehicle. Investing in new infrastructure, or radically upgrading existing highways and transmission lines, would help cut greenhouse gas emissions and drive economic growth in developing countries.
Of course, it takes a lot of cement, a major source of greenhouse gas emissions, to construct new buildings and roads. The U.S. alone contributed 50.7 million metric tons of carbon dioxide to the atmosphere in 2005 from cement production, which requires heating limestone and other ingredients to 1,450 degrees Celsius (2,642 degrees Fahrenheit). Mining copper and other elements needed for electrical wiring and transmission also causes globe-warming pollution.
But energy-efficient buildings and improved cement-making processes (such as using alternative fuels to fire up the kiln) could reduce greenhouse gas emissions in the developed world and prevent them in the developing world.
Move Closer to Work —Transportation is the second leading source of greenhouse gas emissions in the U.S. (burning a single gallon of gasoline produces 20 pounds of CO 2 ). But it doesn't have to be that way.
One way to dramatically curtail transportation fuel needs is to move closer to work, use mass transit, or switch to walking, cycling or some other mode of transport that does not require anything other than human energy. There is also the option of working from home and telecommuting several days a week.
Cutting down on long-distance travel would also help, most notably airplane flights, which are one of the fastest growing sources of greenhouse gas emissions and a source that arguably releases such emissions in the worst possible spot (higher in the atmosphere). Flights are also one of the few sources of globe-warming pollution for which there isn't already a viable alternative: jets rely on kerosene, because it packs the most energy per pound, allowing them to travel far and fast, yet it takes roughly 10 gallons of oil to make one gallon of JetA fuel. Restricting flying to only critical, long-distance trips—in many parts of the world, trains can replace planes for short- to medium-distance trips—would help curb airplane emissions.
Consume Less —The easiest way to cut back on greenhouse gas emissions is simply to buy less stuff. Whether by forgoing an automobile or employing a reusable grocery sack, cutting back on consumption results in fewer fossil fuels being burned to extract, produce and ship products around the globe.
Think green when making purchases. For instance, if you are in the market for a new car, buy one that will last the longest and have the least impact on the environment. Thus, a used vehicle with a hybrid engine offers superior fuel efficiency over the long haul while saving the environmental impact of new car manufacture.
Paradoxically, when purchasing essentials, such as groceries, buying in bulk can reduce the amount of packaging—plastic wrapping, cardboard boxes and other unnecessary materials. Sometimes buying more means consuming less.
Be Efficient —A potentially simpler and even bigger impact can be made by doing more with less. Citizens of many developed countries are profligate wasters of energy, whether by speeding in a gas-guzzling sport-utility vehicle or leaving the lights on when not in a room.
Good driving—and good car maintenance, such as making sure tires are properly inflated—can limit the amount of greenhouse gas emissions from a vehicle and, perhaps more importantly, lower the frequency of payment at the pump.
Similarly, employing more efficient refrigerators, air conditioners and other appliances, such as those rated highly under the U.S. Environmental Protection Agency's Energy Star program, can cut electric bills while something as simple as weatherproofing the windows of a home can reduce heating and cooling bills. Such efforts can also be usefully employed at work, whether that means installing more efficient turbines at the power plant or turning the lights off when you leave the office .
Eat Smart, Go Vegetarian? —Corn grown in the U.S. requires barrels of oil for the fertilizer to grow it and the diesel fuel to harvest and transport it. Some grocery stores stock organic produce that do not require such fertilizers, but it is often shipped from halfway across the globe. And meat, whether beef, chicken or pork, requires pounds of feed to produce a pound of protein.
Choosing food items that balance nutrition, taste and ecological impact is no easy task. Foodstuffs often bear some nutritional information, but there is little to reveal how far a head of lettuce, for example, has traveled.
University of Chicago researchers estimate that each meat-eating American produces 1.5 tons more greenhouse gases through their food choice than do their vegetarian peers. It would also take far less land to grow the crops necessary to feed humans than livestock, allowing more room for planting trees.
Stop Cutting Down Trees —Every year, 33 million acres of forests are cut down . Timber harvesting in the tropics alone contributes 1.5 billion metric tons of carbon to the atmosphere. That represents 20 percent of human-made greenhouse gas emissions and a source that could be avoided relatively easily.
Improved agricultural practices along with paper recycling and forest management—balancing the amount of wood taken out with the amount of new trees growing—could quickly eliminate this significant chunk of emissions.
And when purchasing wood products, such as furniture or flooring, buy used goods or, failing that, wood certified to have been sustainably harvested. The Amazon and other forests are not just the lungs of the earth, they may also be humanity's best short-term hope for limiting climate change.
Unplug —Believe it or not, U.S. citizens spend more money on electricity to power devices when off than when on. Televisions, stereo equipment, computers, battery chargers and a host of other gadgets and appliances consume more energy when seemingly switched off, so unplug them instead.
Purchasing energy-efficient gadgets can also save both energy and money—and thus prevent more greenhouse gas emissions. To take but one example, efficient battery chargers could save more than one billion kilowatt-hours of electricity—$100 million at today's electricity prices—and thus prevent the release of more than one million metric tons of greenhouse gases.
Swapping old incandescent lightbulbs for more efficient replacements, such as compact fluorescents (warning: these lightbulbs contain mercury and must be properly disposed of at the end of their long life), would save billions of kilowatt-hours. In fact, according to the EPA, replacing just one incandescent lightbulb in every American home would save enough energy to provide electricity to three million American homes.
One Child —There are at least 6.6 billion people living today, a number that is predicted by the United Nations to grow to at least nine billion by mid-century. The U.N. Environmental Program estimates that it requires 54 acres to sustain an average human being today—food, clothing and other resources extracted from the planet. Continuing such population growth seems unsustainable.
Falling birth rates in some developed and developing countries (a significant portion of which are due to government-imposed limits on the number of children a couple can have) have begun to reduce or reverse the population explosion. It remains unclear how many people the planet can comfortably sustain, but it is clear that per capita energy consumption must go down if climate change is to be controlled.
Ultimately, a one child per couple rule is not sustainable either and there is no perfect number for human population. But it is clear that more humans means more greenhouse gas emissions.
Future Fuels —Replacing fossil fuels may prove the great challenge of the 21st century. Many contenders exist, ranging from ethanol derived from crops to hydrogen electrolyzed out of water, but all of them have some drawbacks, too, and none are immediately available at the scale needed.
Biofuels can have a host of negative impacts, from driving up food prices to sucking up more energy than they produce. Hydrogen must be created, requiring either reforming natural gas or electricity to crack water molecules. Biodiesel hybrid electric vehicles (that can plug into the grid overnight) may offer the best transportation solution in the short term, given the energy density of diesel and the carbon neutral ramifications of fuel from plants as well as the emissions of electric engines. A recent study found that the present amount of electricity generation in the U.S. could provide enough energy for the country's entire fleet of automobiles to switch to plug-in hybrids , reducing greenhouse gas emissions in the process.
But plug-in hybrids would still rely on electricity, now predominantly generated by burning dirty coal. Massive investment in low-emission energy generation, whether solar-thermal power or nuclear fission , would be required to radically reduce greenhouse gas emissions. And even more speculative energy sources—hyperefficient photovoltaic cells, solar energy stations in orbit or even fusion—may ultimately be required.
The solutions above offer the outline of a plan to personally avoid contributing to global warming. But should such individual and national efforts fail, there is another, potentially desperate solution:
Experiment Earth —Climate change represents humanity's first planetwide experiment. But, if all else fails, it may not be the last. So-called geoengineering , radical interventions to either block sunlight or reduce greenhouse gases, is a potential last resort for addressing the challenge of climate change.
Among the ideas: releasing sulfate particles in the air to mimic the cooling effects of a massive volcanic eruption; placing millions of small mirrors or lenses in space to deflect sunlight; covering portions of the planet with reflective films to bounce sunlight back into space; fertilizing the oceans with iron or other nutrients to enable plankton to absorb more carbon; and increasing cloud cover or the reflectivity of clouds that already form.
All may have unintended consequences, making the solution worse than the original problem. But it is clear that at least some form of geoengineering will likely be required: capturing carbon dioxide before it is released and storing it in some fashion, either deep beneath the earth, at the bottom of the ocean or in carbonate minerals. Such carbon capture and storage is critical to any serious effort to combat climate change.
Additional reporting by Larry Greenemeier and Nikhil Swaminathan .
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A problem built into our relationship with energy itself. Photo by Ferdinando Scianna/Magnum
Deep warming
Even if we ‘solve’ global warming, we face an older, slower problem. waste heat could radically alter earth’s future.
by Mark Buchanan + BIO
The world will be transformed. By 2050, we will be driving electric cars and flying in aircraft running on synthetic fuels produced through solar and wind energy. New energy-efficient technologies, most likely harnessing artificial intelligence, will dominate nearly all human activities from farming to heavy industry. The fossil fuel industry will be in the final stages of a terminal decline. Nuclear fusion and other new energy sources may have become widespread. Perhaps our planet will even be orbited by massive solar arrays capturing cosmic energy from sunlight and generating seemingly endless energy for all our needs.
That is one possible future for humanity. It’s an optimistic view of how radical changes to energy production might help us slow or avoid the worst outcomes of global warming. In a report from 1965, scientists from the US government warned that our ongoing use of fossil fuels would cause global warming with potentially disastrous consequences for Earth’s climate. The report, one of the first government-produced documents to predict a major crisis caused by humanity’s large-scale activities, noted that the likely consequences would include higher global temperatures, the melting of the ice caps and rising sea levels. ‘Through his worldwide industrial civilisation,’ the report concluded, ‘Man is unwittingly conducting a vast geophysical experiment’ – an experiment with a highly uncertain outcome, but clear and important risks for life on Earth.
Since then, we’ve dithered and doubted and argued about what to do, but still have not managed to take serious action to reduce greenhouse gas emissions, which continue to rise. Governments around the planet have promised to phase out emissions in the coming decades and transition to ‘green energy’. But global temperatures may be rising faster than we expected: some climate scientists worry that rapid rises could create new problems and positive feedback loops that may accelerate climate destabilisation and make parts of the world uninhabitable long before a hoped-for transition is possible.
Despite this bleak vision of the future, there are reasons for optimists to hope due to progress on cleaner sources of renewable energy, especially solar power. Around 2010, solar energy generation accounted for less than 1 per cent of the electricity generated by humanity. But experts believe that, by 2027, due to falling costs, better technology and exponential growth in new installations, solar power will become the largest global energy source for producing electricity. If progress on renewables continues, we might find a way to resolve the warming problem linked to greenhouse gas emissions. By 2050, large-scale societal and ecological changes might have helped us avoid the worst consequences of our extensive use of fossil fuels.
It’s a momentous challenge. And it won’t be easy. But this story of transformation only hints at the true depth of the future problems humanity will confront in managing our energy use and its influence over our climate.
As scientists are gradually learning, even if we solve the immediate warming problem linked to the greenhouse effect, there’s another warming problem steadily growing beneath it. Let’s call it the ‘deep warming’ problem. This deeper problem also raises Earth’s surface temperature but, unlike global warming, it has nothing to do with greenhouse gases and our use of fossil fuels. It stems directly from our use of energy in all forms and our tendency to use more energy over time – a problem created by the inevitable waste heat that is generated whenever we use energy to do something. Yes, the world may well be transformed by 2050. Carbon dioxide levels may stabilise or fall thanks to advanced AI-assisted technologies that run on energy harvested from the sun and wind. And the fossil fuel industry may be taking its last breaths. But we will still face a deeper problem. That’s because ‘deep warming’ is not created by the release of greenhouse gases into the atmosphere. It’s a problem built into our relationship with energy itself.
F inding new ways to harness more energy has been a constant theme of human development. The evolution of humanity – from early modes of hunter-gathering to farming and industry – has involved large systematic increases in our per-capita energy use. The British historian and archaeologist Ian Morris estimates, in his book Foragers, Farmers, and Fossil Fuels: How Human Values Evolve (2015), that early human hunter-gatherers, living more than 10,000 years ago, ‘captured’ around 5,000 kcal per person per day by consuming food, burning fuel, making clothing, building shelter, or through other activities. Later, after we turned to farming and enlisted the energies of domesticated animals, we were able to harness as much as 30,000 kcal per day. In the late 17th century , the exploitation of coal and steam power marked another leap: by 1970, the use of fossil fuels allowed humans to consume some 230,000 kcal per person per day. (When we think about humanity writ large as ‘humans’, it’s important to acknowledge that the average person in the wealthiest nations consumes up to 100 times more energy than the average person in the poorest nations.) As the global population has risen and people have invented new energy-dependent technologies, our global energy use has continued to climb.
In many respects, this is great. We can now do more with less effort and achieve things that were unimaginable to the 17th-century inventors of steam engines, let alone to our hominin ancestors. We’ve made powerful mining machines, superfast trains, lasers for use in telecommunications and brain-imaging equipment. But these creations, while helping us, are also subtly heating the planet.
All the energy we humans use – to heat our homes, run our factories, propel our automobiles and aircraft, or to run our electronics – eventually ends up as heat in the environment. In the shorter term, most of the energy we use flows directly into the environment. It gets there through hot exhaust gases, friction between tires and roads, the noises generated by powerful engines, which spread out, dissipate, and eventually end up as heat. However, a small portion of the energy we use gets stored in physical changes, such as in new steel, plastic or concrete. It’s stored in our cities and technologies. In the longer term, as these materials break down, the energy stored inside also finds its way into the environment as heat. This is a direct consequence of the well-tested principles of thermodynamics.
Waste heat will pose a problem that is every bit as serious as global warming from greenhouse gases
In the early decades of the 21st century , this heat created by simply using energy, known as ‘waste heat’, is not so serious. It’s equivalent to roughly 2 per cent of the planetary heating imbalance caused by greenhouse gases – for now. But, with the passing of time, the problem is likely to get much more serious. That’s because humans have a historical tendency to consistently discover and produce things, creating entirely new technologies and industries in the process: domesticated animals for farming; railways and automobiles; global air travel and shipping; personal computers, the internet and mobile phones. The result of such activities is that we end up using more and more energy, despite improved energy efficiency in nearly every area of technology.
During the past two centuries at least (and likely for much longer), our yearly energy use has doubled roughly every 30 to 50 years . Our energy use seems to be growing exponentially, a trend that shows every sign of continuing. We keep finding new things to do and almost everything we invent requires more and more energy: consider the enormous energy demands of cryptocurrency mining or the accelerating energy requirements of AI.
If this historical trend continues, scientists estimate waste heat will pose a problem in roughly 150-200 years that is every bit as serious as the current problem of global warming from greenhouse gases. However, deep heating will be more pernicious as we won’t be able to avoid it by merely shifting from one kind energy to another. A profound problem will loom before us: can we set strict limits on all the energy we use? Can we reign in the seemingly inexorable expansion of our activities to avoid destroying our own environment?
Deep warming is a problem hiding beneath global warming, but one that will become prominent if and when we manage to solve the more pressing issue of greenhouse gases. It remains just out of sight, which might explain why scientists only became concerned about the ‘waste heat’ problem around 15 years ago.
O ne of the first people to describe the problem is the Harvard astrophysicist Eric Chaisson, who discussed the issue of waste heat in a paper titled ‘Long-Term Global Heating from Energy Usage’ (2008). He concluded that our technological society may be facing a fundamental limit to growth due to ‘unavoidable global heating … dictated solely by the second law of thermodynamics, a biogeophysical effect often ignored when estimating future planetary warming scenarios’. When I emailed Chaisson to learn more, he told me the history of his thinking on the problem:
It was on a night flight, Paris-Boston [circa] 2006, after a UNESCO meeting on the environment when it dawned on me that the IPCC were overlooking something. While others on the plane slept, I crunched some numbers literally on the back of an envelope … and then hoped I was wrong, that is, hoped that I was incorrect in thinking that the very act of using energy heats the air, however slightly now.
The transformation of energy into heat is among the most ubiquitous processes of physics
Chaisson drafted the idea up as a paper and sent it to an academic journal. Two anonymous reviewers were eager for it to be published. ‘A third tried his damnedest to kill it,’ Chaisson said, the reviewer claiming the findings were ‘irrelevant and distracting’. After it was finally published, the paper got some traction when it was covered by a journalist and ran as a feature story on the front page of The Boston Globe . The numbers Chaisson crunched, predictions of our mounting waste heat, were even run on a supercomputer at the US National Center for Atmospheric Research, by Mark Flanner, a professor of earth system science. Flanner, Chaisson suspected at the time, was likely ‘out to prove it wrong’. But, ‘after his machine crunched for many hours’, he saw the same results that Chaisson had written on the back of an envelope that night in the plane.
Around the same time, also in 2008, two engineers, Nick Cowern and Chihak Ahn, wrote a research paper entirely independent of Chaisson’s work, but with similar conclusions. This was how I first came across the problem. Cowern and Ahn’s study estimated the total amount of waste heat we’re currently releasing to the environment, and found that it is, right now, quite small. But, like Chaisson, they acknowledged that the problem would eventually become serious unless steps were taken to avoid it.
That’s some of the early history of thinking in this area. But these two papers, and a few other analyses since, point to the same unsettling conclusion: what I am calling ‘deep warming’ will be a big problem for humanity at some point in the not-too-distant future. The precise date is far from certain. It might be 150 years , or 400, or 800, but it’s in the relatively near future, not the distant future of, say, thousands or millions of years. This is our future.
T he transformation of energy into heat is among the most ubiquitous processes of physics. As cars drive down roads, trains roar along railways, planes cross the skies and industrial plants turn raw materials into refined products, energy gets turned into heat, which is the scientific word for energy stored in the disorganised motions of molecules at the microscopic level. As a plane flies from Paris to Boston, it burns fuel and thrusts hot gases into the air, generates lots of sound and stirs up contrails. These swirls of air give rise to swirls on smaller scales which in turn make smaller ones until the energy ultimately ends up lost in heat – the air is a little warmer than before, the molecules making it up moving about a little more vigorously. A similar process takes place when energy is used by the tiny electrical currents inside the microchips of computers, silently carrying out computations. Energy used always ends up as heat. Decades ago, research by the IBM physicist Rolf Landauer showed that a computation involving even a single computing bit will release a certain minimum amount of heat to the environment.
How this happens is described by the laws of thermodynamics, which were described in the mid-19th century by scientists including Sadi Carnot in France and Rudolf Clausius in Germany. Two key ‘laws’ summarise its main principles.
The first law of thermodynamics simply states that the total quantity of energy never changes but is conserved. Energy, in other words, never disappears, but only changes form. The energy initially stored in an aircraft’s fuel, for example, can be changed into the energetic motion of the plane. Turn on an electric heater, and energy initially held in electric currents gets turned into heat, which spreads into the air, walls and fabric of your house. The total energy remains the same, but it markedly changes form.
We’re generating waste heat all the time with everything we do
The second law of thermodynamics, equally important, is more subtle and states that, in natural processes, the transformation of energy always moves from more organised and useful forms to less organised and less useful forms. For an aircraft, the energy initially concentrated in jet fuel ends up dissipated in stirred-up winds, sounds and heat spread over vast areas of the atmosphere in a largely invisible way. It’s the same with the electric heater: the organised useful energy in the electric currents gets dissipated and spread into the low-grade warmth of the walls, then leaks into the outside air. Although the amount of energy remains the same, it gradually turns into less organised, less usable forms. The end point of the energy process produces waste heat. And we’re generating it all the time with everything we do.
Data on world energy consumption shows that, collectively, all humans on Earth are currently using about 170,000 terawatt-hours (TWh), which is a lot of energy in absolute terms – a terawatt-hour is the total energy consumed in one hour by any process using energy at a rate of 1 trillion watts. This huge number isn’t surprising, as it represents all the energy being used every day by the billions of cars and homes around the world, as well as by industry, farming, construction, air traffic and so on. But, in the early 21st century , the warming from this energy is still much less than the planetary heating due to greenhouse gases.
Concentrations of greenhouse gases such as CO 2 and methane are quite small, and only make a fractional difference to how much of the Sun’s energy gets trapped in the atmosphere, rather than making it back out to space. Even so, this fractional difference has a huge effect because the stream of energy arriving from the Sun to Earth is so large. Current estimates of this greenhouse energy imbalance come to around 0.87 W per square meter, which translates into a total energy figure about 50 times larger than our waste heat. That’s reassuring. But as Cowern and Ahn wrote in their 2008 paper, things aren’t likely to stay this way over time because our energy usage keeps rising. Unless, that is, we can find some radical way to break the trend of using ever more energy.
O ne common objection to the idea of the deep warming is to claim that the problem won’t really arise. ‘Don’t worry,’ someone might say, ‘with efficient technology, we’re going to find ways to stop using more energy; though we’ll end up doing more things in the future, we’ll use less energy.’ This may sound plausible at first, because we are indeed getting more efficient at using energy in most areas of technology. Our cars, appliances and laptops are all doing more with less energy. If efficiency keeps improving, perhaps we can learn to run these things with almost no energy at all? Not likely, because there are limits to energy efficiency.
Over the past few decades, the efficiency of heating in homes – including oil and gas furnaces, and boilers used to heat water – has increased from less than 50 per cent to well above 90 per cent of what is theoretically possible. That’s good news, but there’s not much more efficiency to be realised in basic heating. The efficiency of lighting has also vastly improved, with modern LED lighting turning something like 70 per cent of the applied electrical energy into light. We will gain some efficiencies as older lighting gets completely replaced by LEDs, but there’s not a lot of room left for future efficiency improvements. Similar efficiency limits arise in the growing or cooking of food; in the manufacturing of cars, bikes and electronic devices; in transportation, as we’re taken from place to place; in the running of search engines, translation software, GPT-4 or other large-language models.
Even if we made significant improvements in the efficiencies of these technologies, we will only have bought a little time. These changes won’t delay by much the date when deep warming becomes a problem we must reckon with.
Optimising efficiencies is just a temporary reprieve, not a radical change in our human future
As a thought experiment, suppose we could immediately improve the energy efficiency of everything we do by a factor of 10 – a fantastically optimistic proposal. That is, imagine the energy output of humans on Earth has been reduced 10 times , from 170,000 TWh to 17,000 TWh . If our energy use keeps expanding, doubling every 30-50 years or so (as it has for centuries), then a 10-fold increase in waste heat will happen in just over three doubling times, which is about 130 years : 17,000 TWh doubles to 34,000 TWh , which doubles to 68,000 TWh , which doubles to 136,000 TWh , and so on. All those improvements in energy efficiency would quickly evaporate. The date when deep warming hits would recede by 130 years or so, but not much more. Optimising efficiencies is just a temporary reprieve, not a radical change in our human future.
Improvements in energy efficiency can also have an inverse effect on our overall energy use. It’s easy to think that if we make a technology more efficient, we’ll then use less energy through the technology. But economists are deeply aware of a paradoxical effect known as ‘rebound’, whereby improved energy efficiency, by making the use of a technology cheaper, actually leads to more widespread use of that technology – and more energy use too. The classic example, as noted by the British economist William Stanley Jevons in his book The Coal Question (1865), is the invention of the steam engine. This new technology could extract energy from burning coal more efficiently, but it also made possible so many new applications that the use of coal increased. A recent study by economists suggests that, across the economy, such rebound effects might easily swallow at least 50 per cent of any efficiency gains in energy use. Something similar has already happened with LED lights, for which people have found thousands of new uses.
If gains in efficiency won’t buy us lots of time, how about other factors, such as a reduction of the global population? Scientists generally believe that the current human population of more than 8 billion people is well beyond the limits of our finite planet, especially if a large fraction of this population aspires to the resource-intensive lifestyles of wealthy nations. Some estimates suggest that a more sustainable population might be more like 2 billion , which could reduce energy use significantly, potentially by a factor of three or four. However, this isn’t a real solution: again, as with the example of improved energy efficiency, a one-time reduction of our energy consumption by a factor of three will quickly be swallowed up by an inexorable rise in energy use. If Earth’s population were suddenly reduced to 2 billion – about a quarter of the current population – our energy gains would initially be enormous. But those gains would be erased in two doubling times, or roughly 60-100 years , as our energy demands would grow fourfold.
S o, why aren’t more people talking about this? The deep warming problem is starting to get more attention. It was recently mentioned on Twitter by the German climate scientist Stefan Rahmstorf, who cautioned that nuclear fusion, despite excitement over recent advances, won’t arrive in time to save us from our waste heat, and might make the problem worse. By providing another cheap source of energy, fusion energy could accelerate both the growth of our energy use and the reckoning of deep warming. A student of Rahmstorf’s, Peter Steiglechner, wrote his master’s thesis on the problem in 2018. Recognition of deep warming and its long-term implications for humanity is spreading. But what can we do about the problem?
Avoiding or delaying deep warming will involve slowing the rise of our waste heat, which means restricting the amount of energy we use and also choosing energy sources that exacerbate the problem as little as possible. Unlike the energy from fossil fuels or nuclear power, which add to our waste energy burden, renewable energy sources intercept energy that is already on its way to Earth, rather than producing additional waste heat. In this sense, the deep warming problem is another reason to pursue renewable energy sources such as solar or wind rather than alternatives such as nuclear fusion, fission or even geothermal power. If we derive energy from any of these sources, we’re unleashing new flows of energy into the Earth system without making a compensating reduction. As a result, all such sources will add to the waste heat problem. However, if renewable sources of energy are deployed correctly, they need not add to our deposition of waste heat in the environment. By using this energy, we produce no more waste heat than would have been created by sunlight in the first place.
Take the example of wind energy. Sunlight first stirs winds into motion by heating parts of the planet unequally, causing vast cells of convection. As wind churns through the atmosphere, blows through trees and over mountains and waves, most of its energy gets turned into heat, ending up in the microscopic motions of molecules. If we harvest some of this wind energy through turbines, it will also be turned into heat in the form of stored energy. But, crucially, no more heat is generated than if there had been no turbines to capture the wind.
The same can hold true for solar energy. In an array of solar cells, if each cell only collects the sunlight falling on it – which would ordinarily have been absorbed by Earth’s surface – then the cells don’t alter how much waste heat gets produced as they generate energy. The light that would have warmed Earth’s surface instead goes into the solar cells, gets used by people for some purpose, and then later ends up as heat. In this way we reduce the amount of heat being absorbed by Earth by precisely the same amount as the energy we are extracting for human use. We are not adding to overall planetary heating. This keeps the waste energy burden unchanged, at least in the relatively near future, even if we go on extracting and using ever larger amounts of energy.
Covering deserts in dark panels would absorb a lot more energy than the desert floor
Chaisson summarised the problem quite clearly in 2008:
I’m now of the opinion … that any energy that’s dug up on Earth – including all fossil fuels of course, but also nuclear and ground-sourced geothermal – will inevitably produce waste heat as a byproduct of humankind’s use of energy. The only exception to that is energy arriving from beyond Earth, this is energy here and now and not dug up, namely the many solar energies (plural) caused by the Sun’s rays landing here daily … The need to avoid waste heat is indeed the single, strongest, scientific argument to embrace solar energies of all types.
But not just any method of gathering solar energy will avoid the deep warming problem. Doing so requires careful engineering. For example, covering deserts with solar panels would add to planetary heating because deserts reflect a lot of incident light back out to space, so it is never absorbed by Earth (and therefore doesn’t produce waste heat). Covering deserts in dark panels would absorb a lot more energy than the desert floor and would heat the planet further.
We’ll also face serious problems in the long run if our energy appetite keeps increasing. Futurists dream of technologies deployed in space where huge panels would absorb sunlight that would otherwise have passed by Earth and never entered our atmosphere. Ultimately, they believe, this energy could be beamed down to Earth. Like nuclear energy, such technologies would add an additional energy source to the planet without any compensating removal of heating from the sunlight currently striking our planet’s surface. Any effort to produce more energy than is normally available from sunlight at Earth’s surface will only make our heating problems worse.
D eep warming is simply a consequence of the laws of physics and our inquisitive nature. It seems to be in our nature to constantly learn and develop new things, changing our environment in the process. For thousands of years, we have harvested and exploited ever greater quantities of energy in this pursuit, and we appear poised to continue along this path with the rapidly expanding use of renewable energy sources – and perhaps even more novel sources such as nuclear fusion. But this path cannot proceed indefinitely without consequences.
The logic that more energy equals more warming sets up a profound dilemma for our future. The laws of physics and the habits ingrained in us from our long evolutionary history are steering us toward trouble. We may have a technological fix for greenhouse gas warming – just shift from fossil fuels to cleaner energy sources – but there is no technical trick to get us out of the deep warming problem. That won’t stop some scientists from trying.
Perhaps, believing that humanity is incapable of reducing its energy usage, we’ll adopt a fantastic scheme to cool the planet, such as planetary-scale refrigeration or using artificially engineered tornadoes to transport heat from Earth’s surface to the upper atmosphere where it can be radiated away to space. As far-fetched as such approaches sound, scientists have given some serious thought to these and other equally bizarre ideas, which seem wholly in the realm of science fiction. They’re schemes that will likely make the problem worse not better.
We will need to transform the human story. It must become a story of doing less, not more
I see several possibilities for how we might ultimately respond. As with greenhouse gas warming, there will probably be an initial period of disbelief, denial and inaction, as we continue with unconstrained technological advance and growing energy use. Our planet will continue warming. Sooner or later, however, such warming will lead to serious disruptions of the Earth environment and its ecosystems. We won’t be able to ignore this for long, and it may provide a natural counterbalance to our energy use, as our technical and social capacity to generate and use ever more energy will be eroded. We may eventually come to some uncomfortable balance in which we just scrabble out a life on a hot, compromised planet because we lack the moral and organisational ability to restrict our energy use enough to maintain a sound environment.
An alternative would require a radical break with our past: using less energy. Finding a way to use less energy would represent a truly fundamental rupture with all of human history, something entirely novel. A rupture of this magnitude won’t come easily. However, if we could learn to view restrictions on our energy use as a non-negotiable element of life on Earth, we may still be able to do many of the things that make us essentially human: learning, discovering, inventing, creating. In this scenario, any helpful new technology that comes into use and begins using lots of energy would require a balancing reduction in energy use elsewhere. In such a way, we might go on with the future being perpetually new, and possibly better.
None of this is easily achieved and will likely mirror our current struggles to come to agreements on greenhouse gas heating. There will be vicious squabbles, arguments and profound polarisation, quite possibly major wars. Humanity will never have faced a challenge of this magnitude, and we won’t face up to it quickly or easily, I expect. But we must. Planetary heating is in our future – the very near future and further out as well. Many people will find this conclusion surprisingly hard to swallow, perhaps because it implies fundamental restrictions on our future here on Earth: we can’t go on forever using more and more energy, and, at the same time, expecting the planet’s climate to remain stable.
The world will likely be transformed by 2050. And, sometime after that, we will need to transform the human story. The narrative arc of humanity must become a tale of continuing innovation and learning, but also one of careful management. It must become a story, in energy terms, of doing less, not more. There’s no technology for entirely escaping waste heat, only techniques.
This is important to remember as we face up to the extremely urgent challenge of heating linked to fossil-fuel use and greenhouse gases. Global warming is just the beginning of our problems. It’s a testing ground to see if we can manage an intelligent and coordinated response. If we can handle this challenge, we might be better prepared, more capable and resilient as a species to tackle an even harder one.
![the solution of global warming essay Black-and-white photo of a man in a suit and hat grabbing another man by his collar in front of a bar with bottles.](https://images.aeonmedia.co/images/e7965c4b-cb81-41e6-a398-fb57fc2356c6/essay-the-public-enemy-.jpg?width=3840&quality=75&format=auto)
Political philosophy
C L R James and America
The brilliant Trinidadian thinker is remembered as an admirer of the US but he also warned of its dark political future
Harvey Neptune
![the solution of global warming essay A suburban street with mountains in the background, featuring a girl on a bike, parked cars, and old furniture on the sidewalk in front of a house.](https://images.aeonmedia.co/images/cf79ce56-22d5-485b-919e-43af3a6d508c/essay-v2-nn11492476.jpg?width=3840&quality=75&format=auto)
Progress and modernity
The great wealth wave
The tide has turned – evidence shows ordinary citizens in the Western world are now richer and more equal than ever before
Daniel Waldenström
![the solution of global warming essay Silhouette of a person walking through a spray of water at sunset with cars and buildings in the background.](https://images.aeonmedia.co/images/25b67b4d-d49d-4f8e-b96d-1c8b33ed0a16/essay-rtr2g5k7.jpg?width=3840&quality=75&format=auto)
Neuroscience
The melting brain
It’s not just the planet and not just our health – the impact of a warming climate extends deep into our cortical fissures
Clayton Page Aldern
![the solution of global warming essay A brick house with a tiled roof, surrounded by a well-maintained garden with bushes and colourful flowers.](https://images.aeonmedia.co/images/753e612a-9bae-4257-a34f-98ee4da12cc3/test-essay-roehouse.jpg?width=3840&quality=75&format=auto)
Falling for suburbia
Modernists and historians alike loathed the millions of new houses built in interwar Britain. But their owners loved them
Michael Gilson
![the solution of global warming essay Close-up of a person’s hand using a smartphone in a dimly lit room with blurred lights in the background. The phone screen shows the text ‘How can I help you today?’ and a text input field.](https://images.aeonmedia.co/images/4512cf70-20be-4286-bbe3-7338389b95d5/essay-final-gettyimages-2152436402.jpg?width=3840&quality=75&format=auto)
Computing and artificial intelligence
Mere imitation
Generative AI has lately set off public euphoria: the machines have learned to think! But just how intelligent is AI?
![the solution of global warming essay A black-and-white photo of a person riding a horse in, with a close-up of another horse in the foreground under bright sunlight.](https://images.aeonmedia.co/images/74a39e36-ba5d-43eb-b491-1a96e58c4b2d/essay-final-par122095.jpg?width=3840&quality=75&format=auto)
Anthropology
Your body is an archive
If human knowledge can disappear so easily, why have so many cultural practices survived without written records?
Helena Miton
- Solving Climate Change
Humans have warmed the planet by approximately 1.0°C (1.8°F) in the past 150 years, which has increased the risk of wildfires, hurricanes, heat waves, droughts, and floods. Sea level is rising, and ice is melting. All of this is making life on Earth much more difficult.
We caused the problem by increasing the amount of greenhouse gases in the atmosphere, but we have the ability to keep the amount of warming low enough to be survivable. Communities and nations around the world are taking action to solve climate change. There’s much more that needs to be accomplished, so keep reading to learn what can be done to keep our planet as cool as possible.
Global Warming Targets
If we keep the amount of climate warming low enough, we can adapt, finding ways to live and even thrive. But what is low enough? The planet has already warmed 1°C. How much more can we handle?
Since the 1990s, scientists and policymakers around the world had considered the goal to be a limit of 2°C (3.6°F) above pre-industrial levels (which was before we started burning fossil fuels). But in 2018, the Intergovernmental Panel on Climate Change (IPCC) reported on what we know about the impacts of global warming of 1.5°C (2.7°F) compared to 2°C.
They found that with a warming of 2°C, the impacts are more severe than 1.5°C. For example, heat waves would be hotter, rains would be heavier, and sea level would rise more. There are higher risks to health, the food supply, water, ecosystems, and economic growth with 2°C warming compared with 1.5°C. Overall, 1.5°C warming gives us a better chance of adapting to climate change, although there are impacts, like the loss of some ecosystems, which may be long-lasting or irreversible.
![the solution of global warming essay bike path in a city](https://scied.ucar.edu/sites/default/files/media/images/bike-path-1_0.jpg)
Many communities are adding bike lanes and sidewalks to encourage residents to make transportation choices that help decrease emissions of greenhouse gases and other air pollutants. Credit: Daniel Lobo
How Can We Tackle Climate Change?
There are several different strategies when it comes to dealing with climate change. Reducing greenhouse gases is a direct way to help slow or stop climate change since excess greenhouse gases are what are causing the climate to warm. This can mean switching to power sources that don’t emit greenhouse gases and taking carbon dioxide out of the air by planting forests and conserving ecosystems. New research on ways to pull carbon dioxide out of the atmosphere could potentially provide other solutions in the future. Researchers are also studying whether we could safely limit the amount of sunlight that gets to Earth in the future while we are reducing emissions.
Unfortunately, the planet is already warming and we are seeing the impacts of climate change. Even if we stop emitting greenhouse gases in the next decade or two, we will be facing more climate change this century, which is why finding ways to adapt to climate change is also important to keep our planet as livable as possible.
How Can We Limit Warming to 1.5°C?
To keep the total warming limited to 1.5°C, we need to act quickly to change energy sources, how land is used, how industry operates, and our urban environments, including buildings and transportation. For example, industries can reduce emissions with new and existing technologies and practices, such as switching power sources, using sustainable materials like bioplastic, and capturing carbon emissions at factories so they don’t make it into the atmosphere.
There are many ways that we can do this. The IPCC 2018 report analyzed different scenarios that would help us meet the 1.5°C target. Below are descriptions of four scenarios that would meet the target, and a graph showing how much each could reduce carbon dioxide emissions.
- The innovation scenario (P1): We develop innovations that lead to lower energy demand while living standards rise, especially in the Southern Hemisphere. Needing less energy helps us make the transition to renewable energy. More forests are planted to take carbon dioxide out of the air .
- The sustainability scenario (P2): We use less energy to produce goods and provide services, there is more international cooperation, and there are shifts toward sustainable consumption patterns. A switch to mostly renewable energy helps us emit less carbon dioxide, and there is also some carbon capture and storage technology used at power plants to stop CO 2 from getting into the atmosphere. Land is well-managed and there are lower emissions from farms.
- The middle-of-the-road scenario (P3): There is more energy demand in the future, but we increase renewable energy and nuclear power and decrease fossil fuel use so that we can decrease emissions. Where there are still fossil fuels burned at power plants, carbon capture and storage are used. Bioenergy power plants are also developed, which burn plants like switchgrass to create electricity, and then capture the CO 2 .
- The energy-intensive scenario (P4): Economic growth and globalization cause more people to have a lifestyle that emits lots of greenhouse gases — for example, by driving cars, taking flights, and eating meat. In this scenario, energy comes from oil, gas, nuclear power, and renewables. We have a lot of emissions to reduce and some catching up to do because we have high emissions in the next couple of decades. We do this with carbon capture and storage and removing carbon from the air with bioenergy power plants that capture CO 2 .
![the solution of global warming essay the amount of carbon dioxide emissions per year through this century for the four scenarios all have the ability to stop emissions](https://scied.ucar.edu/sites/default/files/media/images/ipcc-2018-graph_0.png)
The graph above shows the amount of carbon dioxide emissions per year through the 21st century for each scenario that limits global warming to 1.5°C (described above: P1 to P4). The shaded area shows the full range of options studied in the IPCC 2018 report. Credit: IPCC
- Why Earth Is Warming
- Can We Limit the Amount of Sunlight that Gets to Earth and Stop Climate Change?
- How Do We Reduce Greenhouse Gases?
- Classroom Activity: Solving the Carbon Dioxide Problem
- Share full article
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Lesson of the Day
Explore 7 Climate Change Solutions
In this lesson, students will use a jigsaw activity to learn about some of the most effective strategies and technologies that can help head off the worst effects of global warming.
![the solution of global warming essay](https://static01.nyt.com/images/2021/06/10/us/10cli-biodiversity5-LN/merlin_164506578_37f3349a-4cbf-4ea7-a7fb-7e858001864d-articleLarge.jpg?quality=75&auto=webp&disable=upscale)
By Natalie Proulx
Lesson Overview
Earlier this summer, a report issued by the Intergovernmental Panel on Climate Change , a body of scientists convened by the United Nations, found that some devastating impacts of global warming were unavoidable. But there is still a short window to stop things from getting even worse.
This report will be central at COP26 , the international climate summit where about 20,000 heads of state, diplomats and activists are meeting in person this week to set new targets for cutting emissions from coal, oil and gas that are heating the planet.
In this lesson, you will learn about seven ways we can slow down climate change and head off some of its most catastrophic consequences while we still have time. Using a jigsaw activity , you’ll become an expert in one of these strategies or technologies and share what you learn with your classmates. Then, you will develop your own climate plan and consider ways you can make a difference based on your new knowledge.
What do you know about the ways the world can slow climate change? Start by making a list of strategies, technologies or policies that could help solve the climate crisis.
Which of your ideas do you think could have the biggest impact on climate change? Circle what you think might be the top three.
Now, test your knowledge by taking this 2017 interactive quiz:
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How Much Do You Know About Solving Global Warming?
A new book presents 100 potential solutions. Can you figure out which ones are top ranked?
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What can we do to slow or stop global warming?
There is no one-size-fits-all approach to stopping or slowing global warming, and each individual, business, municipal, state, tribal, and federal entity must weigh their options in light of their own unique set of circumstances. Experts say it is likely many strategies working together will be needed. Generally speaking, here are some examples of mitigation strategies we can use to slow or stop the human-caused global warming ( learn more ):
- Where possible, we can switch to renewable sources of energy (such as solar and wind energy) to power our homes and buildings, thus emitting far less heat-trapping gases into the atmosphere.
- Where feasible, we can drive electric vehicles instead of those that burn fossil fuels; or we can use mass transit instead of driving our own cars.
- Where affordable, we can conserve energy by better insulating our homes and buildings, and by replacing old, failing appliances with more energy-efficient models.
- Where practicable, we can counterbalance our annual carbon dioxide emissions by investing in commercial services that draw down an equal amount of carbon out of the atmosphere, such as through planting trees or carbon capture and storage techniques.
- Where practical, we can support more local businesses that use and promote sustainable, climate-smart practices such as those listed above.
- We can consider placing an upper limit on the amount of carbon dioxide we will allow ourselves to emit into the atmosphere within a given timeframe.
Note that NOAA doesn’t advocate for or against particular climate policies. Instead, NOAA’s role is to provide data and scientific information about climate, including how it has changed and is likely to change in the future depending on different climate policies or actions society may or may not take. More guidance on courses of action can be found in the National Academy of Sciences' 2010 report, titled Informing an Effective Response to Climate Change . Also learn more here, here, and here .
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Stabilizing global temperature near its current level requires eliminating all emissions of heat-trapping gases or, equivalently, achieving a carbon-neutral society in which people remove as much carbon from the atmosphere as they emit. Achieving this goal will require substantial societal changes in energy technologies and infrastructure that go beyond the collective actions of individuals and households to reduce emissions.
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ENCYCLOPEDIC ENTRY
Global warming.
The causes, effects, and complexities of global warming are important to understand so that we can fight for the health of our planet.
Earth Science, Climatology
Tennessee Power Plant
Ash spews from a coal-fueled power plant in New Johnsonville, Tennessee, United States.
Photograph by Emory Kristof/ National Geographic
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Global warming is the long-term warming of the planet’s overall temperature. Though this warming trend has been going on for a long time, its pace has significantly increased in the last hundred years due to the burning of fossil fuels . As the human population has increased, so has the volume of fossil fuels burned. Fossil fuels include coal, oil, and natural gas, and burning them causes what is known as the “greenhouse effect” in Earth’s atmosphere.
The greenhouse effect is when the sun’s rays penetrate the atmosphere, but when that heat is reflected off the surface cannot escape back into space. Gases produced by the burning of fossil fuels prevent the heat from leaving the atmosphere. These greenhouse gasses are carbon dioxide , chlorofluorocarbons, water vapor , methane , and nitrous oxide . The excess heat in the atmosphere has caused the average global temperature to rise overtime, otherwise known as global warming.
Global warming has presented another issue called climate change. Sometimes these phrases are used interchangeably, however, they are different. Climate change refers to changes in weather patterns and growing seasons around the world. It also refers to sea level rise caused by the expansion of warmer seas and melting ice sheets and glaciers . Global warming causes climate change, which poses a serious threat to life on Earth in the forms of widespread flooding and extreme weather. Scientists continue to study global warming and its impact on Earth.
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Causes and Effects of Climate Change
Fossil fuels – coal, oil and gas – are by far the largest contributor to global climate change, accounting for over 75 per cent of global greenhouse gas emissions and nearly 90 per cent of all carbon dioxide emissions. As greenhouse gas emissions blanket the Earth, they trap the sun’s heat. This leads to global warming and climate change. The world is now warming faster than at any point in recorded history. Warmer temperatures over time are changing weather patterns and disrupting the usual balance of nature. This poses many risks to human beings and all other forms of life on Earth.
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Global Warming Definition, Causes, Effects, Impacts, Solutions
Global Warming is a long-term increase in average global temperature. Read about Global Warming Definition, Causes, Effects, Impact on Climate Change & Solutions for the UPSC exam.
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Table of Contents
What is Global Warming?
Global Warming is a long-term increase in average global temperature. It is considered a natural phenomenon, but anthropogenic activities on earth, particularly post Industrial Revolution , have led to an increase in the rate of this temperature increase. Various Reports published by the International Panel on Climate Change (IPCC) have time and again highlighted that since 1850 human activities have led to an increase of about 1 degree Celsius in average global temperature. Most of this warming has taken place in the second half of the 20th century. The fact that 5 of the hottest recorded year have occurred since 2015 can help us better understand the calamitous impact of anthropogenic activities.
Global Warming Causes
Green House Gases also known as GHGs in the atmosphere trap the solar radiations that are reflected by the earth’s surface. Under normal circumstances, most of these radiations escape into outer space. However, the release of GHGs by anthropogenic activities has increased their concentration in the atmosphere. Thus, the earth is getting hotter and hotter.
Some of the common GHGs include carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, and water vapour, among others. The global warming potential of each GHG is different. For example, methane has a 25-time warming potential than carbon dioxide. Similarly, nitrous oxide has more than 250 times the warming potential than carbon dioxide. The top anthropogenic activities that are responsible for the release of GHGs are shown below.
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Global Warming and Green House Effect
Both phenomena are related to each other. Green House Gases also known as GHGs in the atmosphere trap the solar radiations that are reflected by the earth’s surface. Under normal circumstances, most of these radiations escape into outer space. However, the release of GHGs by anthropogenic activities has increased their concentration in the atmosphere. This is the primary cause of Global Warming .
Global Warming Effects
Increase in the average temperature of the earth.
According to IPCC reports, human-induced global warming is responsible for nearly 1 degree Celsius temperature rise vis a vis pre-industrial level. Data from NASA suggest that 2016 has been the hottest year on record.
Frequency of Extreme Weather Events is Increasing
Across the globe, extreme weather events have increased in occurrence. For example, forest fires in California have become an annual event. Also, it is increasing in frequency each year. Most recently, we have recorded the phenomena of heat waves in Antarctica. The intensity of cyclones in the Bay of Bengal region has increased. Similarly, the frequency of occurrence of El Niño and La Niña has reduced from once in 8–10 years to once in 3–4 years now. More frequent episodes of floods and drought are being recorded every year across the world.
Melting of Ice
According to IPCC, there is 10% less permafrost in North Hemisphere at present compared to the 1900s. Remote sensing data suggest Arctic ice is melting fast. Experts suggest that not only will the sea level rise with the melting of glaciers, but there is also a danger of new bacteria and viruses being released into the environment which has so far been trapped in ice sheets. This may lead to outbreaks of disease and pandemics which are beyond the control of human medical sciences.
Sea Level Rise and Acidification of Ocean
A report published by WMO, suggests that the rate of sea level rise has doubled for the period between 2013 and 2021 compared to the rate for the period between 1993 and 2002. Earth scientists are suggesting that if this phenomenon continues, many human-inhabited coastal areas will be submerged into the sea in the coming decades. Also, with the concentration of carbon dioxide rising in the atmosphere, oceans are absorbing more of it. This is leading to ocean acidification. The impact of this phenomenon can be disastrous for ocean biodiversity, particularly the coral reefs.
Adverse Impact on Terrestrial Ecosystems of the Earth
It has been recorded that many flora and fauna species are heading northwards in Northern Hemisphere. Significant changes have been observed in the migratory movements of birds across the world. Early arrival to their summer feeding and breeding grounds is quite evident. Expert biologists suggest that rising temperatures in the tropical and subtropical regions may lead to an outbreak of new diseases, which in turn may render many floral and faunal species extinct.
Social and Economic Impact
A rising number of extreme weather events will have an adverse impact on agriculture and fisheries. Rising global temperatures will have a negative impact on the productivity of human beings, particularly in tropical and subtropical regions of the earth. The impact on life and livelihoods of indigenous people across the world will be even more pronounced.
Global Warming Solutions
Global cooperation for reduction of emissions.
It is time that the target of containing the global average temperature rise within 1.5 degrees Celsius of pre-industrial levels is taken seriously. Also, global efforts should be based on a spirit of Common But Differentiated Responsibility. This will ensure that historical injustices done to the global south are duly acknowledged, and they have an equal chance to transform themselves into developed countries. Countries must act proactively to achieve Net Zero Emission status at the earliest.
Transition to Cleaner and Greener Forms of Energy
Thermal power plants based on coal should be made more efficient and inefficient ones should be phased off. Also, mass adoption of renewable forms of energy like solar should be promoted. Similarly, avenues for using hydrogen as energy fuel should be looked into. We must also explore the possibility of Nuclear fusion for energy generation, in addition to making nuclear fission-based energy generation safer.
Changes in Agricultural Practices and Land Use
Agriculture based on the use of nitrogenous fertilizers must be replaced with organic farming techniques. Also, methane gas released from agricultural and cattle waste must be trapped as biogas for domestic usage. Massive afforestation drives must be organized. Urban governments must make it a point to include green spaces in urban planning.
Improving Transportation System
The advent of E-vehicles is a welcome change, but we need to make the batteries used in these vehicles more efficient. Urban planners must make public transportation systems inherent as a benchmark of good urban planning. Also, urban planning should be such that it promotes more walking and cycling habits among the residents.
Behavioural Changes
All the above discussions will have no meaning if we as individuals are not sensitive enough. We need to make reducing, reusing and recycling a mantra of our living. It should be our civic duty to save water, and wildlife and raise awareness among others.
Solar Geoengineering
Solar geoengineering, a proposed climate intervention method, aims to counteract global warming by reflecting a portion of the sun’s rays back into space. One prominent approach involves injecting substances like sulphur dioxide into the upper atmosphere to create reflective aerosols. These particles can scatter sunlight, reducing the Earth’s temperature. However, solar geoengineering is a topic of debate, with concerns about its side effects, such as disrupted weather patterns and potential geopolitical risks. Research in this field is ongoing, but it remains a theoretical concept with limited practical implementation.
Can Solar Geoengineering Halt Global Warming?
Solar geoengineering, specifically solar radiation management (SRM), is under scrutiny as a potential method to mitigate global warming. SRM involves reflecting sunlight away from Earth, often by injecting substances like sulphur dioxide into the upper atmosphere to create reflective aerosols. However, its effectiveness remains a subject of debate, with concerns about potential side effects and ethical implications. While research in this field is ongoing, solar geoengineering is currently in a theoretical stage, with limited practical implementation.
Global Warming Conclusion
It is rightly said that “Charity begins at home.” Climate action will be more efficient if we go by this spirit. To begin with, each individual can make sure that what is happening in their house and immediate surroundings is in harmony with the environment. If this can happen, all the policies we are making at the local, national, regional and global levels will give far better results.
Global Warming UPSC
Each year, we read about rising global temperatures. Also, catching the headlines is the news related to disasters caused by events like cyclones, forest fires, floods and drought. All these phenomena can be attributed to one single cause which is global warming.
Global Warming is a long-term increase in average global temperature. It is considered a natural phenomenon, but anthropogenic activities on earth, particularly post-Industrial Revolution, have led to an increase in the rate of this temperature increase.
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Why is global warming a problem?
Global Warming at present rate can lead to disastrous impacts like rising sea level, out break of new diseases, extreme weather events among others.
What are 3 causes of global warming?
Human induced green house gas emission due to activities like agriculture, industrial emissions, transportation are the top 3 causes of global warming.
What are 5 effects of global warming?
Rising sea level, out break of new diseases, extreme weather events, changes in biodiversity and melting of glaciers are top 5 effects of global warming.
Why global warming is important?
Global warming at its natural rate is important to keep up the temperature of earth within the range that makes it habitable. This makes global warming important.
Can we control global warming?
Number of mitigation measures like shifting to cleaning forms of energy and transportation can be taken to control global warming.
Who help with global warming?
Global Warming is a collective challenge for entire humanity. Citizens, civil societies, governments and businesses must act in unison to address it.
I, Sakshi Gupta, am a content writer to empower students aiming for UPSC, PSC, and other competitive exams. My objective is to provide clear, concise, and informative content that caters to your exam preparation needs. I strive to make my content not only informative but also engaging, keeping you motivated throughout your journey!
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What are the solutions to climate change?
Climate change is already an urgent threat to millions of lives – but there are solutions. From changing how we get our energy to limiting deforestation, here are some of the key solutions to climate change.
Climate change is happening now, and it’s the most serious threat to life on our planet. Luckily, there are plenty of solutions to climate change and they are well-understood.
In 2015, world leaders signed a major treaty called the Paris agreement to put these solutions into practice.
Core to all climate change solutions is reducing greenhouse gas emissions , which must get to zero as soon as possible.
Because both forests and oceans play vitally important roles in regulating our climate, increasing the natural ability of forests and oceans to absorb carbon dioxide can also help stop global warming.
The main ways to stop climate change are to pressure government and business to:
- Keep fossil fuels in the ground . Fossil fuels include coal, oil and gas – and the more that are extracted and burned, the worse climate change will get. All countries need to move their economies away from fossil fuels as soon as possible.
- Invest in renewable energy . Changing our main energy sources to clean and renewable energy is the best way to stop using fossil fuels. These include technologies like solar, wind, wave, tidal and geothermal power.
- Switch to sustainable transport . Petrol and diesel vehicles, planes and ships use fossil fuels. Reducing car use, switching to electric vehicles and minimising plane travel will not only help stop climate change, it will reduce air pollution too.
- Help us keep our homes cosy . Homes shouldn’t be draughty and cold – it’s a waste of money, and miserable in the winter. The government can help households heat our homes in a green way – such as by insulating walls and roofs and switching away from oil or gas boilers to heat pumps .
- Improve farming and encourage vegan diets . One of the best ways for individuals to help stop climate change is by reducing their meat and dairy consumption, or by going fully vegan. Businesses and food retailers can improve farming practices and provide more plant-based products to help people make the shift.
- Restore nature to absorb more carbon . The natural world is very good at cleaning up our emissions, but we need to look after it. Planting trees in the right places or giving land back to nature through ‘rewilding’ schemes is a good place to start. This is because photosynthesising plants draw down carbon dioxide as they grow, locking it away in soils.
- Protect forests like the Amazon . Forests are crucial in the fight against climate change, and protecting them is an important climate solution. Cutting down forests on an industrial scale destroys giant trees which could be sucking up huge amounts of carbon. Yet companies destroy forests to make way for animal farming, soya or palm oil plantations. Governments can stop them by making better laws.
- Protect the oceans . Oceans also absorb large amounts of carbon dioxide from the atmosphere, which helps to keep our climate stable. But many are overfished , used for oil and gas drilling or threatened by deep sea mining. Protecting oceans and the life in them is ultimately a way to protect ourselves from climate change.
- Reduce how much people consume . Our transport, fashion, food and other lifestyle choices all have different impacts on the climate. This is often by design – fashion and technology companies, for example, will release far more products than are realistically needed. But while reducing consumption of these products might be hard, it’s most certainly worth it. Reducing overall consumption in more wealthy countries can help put less strain on the planet.
- Reduce plastic . Plastic is made from oil, and the process of extracting, refining and turning oil into plastic (or even polyester, for clothing) is surprisingly carbon-intense . It doesn’t break down quickly in nature so a lot of plastic is burned, which contributes to emissions. Demand for plastic is rising so quickly that creating and disposing of plastics will account for 17% of the global carbon budget by 2050 (this is the emissions count we need to stay within according to the Paris agreement ).
It’s easy to feel overwhelmed, and to feel that climate change is too big to solve. But we already have the answers, now it’s a question of making them happen. To work, all of these solutions need strong international cooperation between governments and businesses, including the most polluting sectors.
Individuals can also play a part by making better choices about where they get their energy, how they travel, and what food they eat. But the best way for anyone to help stop climate change is to take collective action. This means pressuring governments and corporations to change their policies and business practices.
Governments want to be re-elected. And businesses can’t survive without customers. Demanding action from them is a powerful way to make change happen.
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Imagine a future powered by renewable energy, where forests, oceans and people thrive. Now is the time for change. Your support can make a huge difference.
The fossil fuel industry is blocking climate change action
Major oil and gas companies including BP, Exxon and Shell have spent hundreds of millions of pounds trying to delay or stop government policies that would have helped tackle the climate crisis.
Despite the effects of climate change becoming more and more obvious, big polluting corporations – the ones responsible for the majority of carbon emissions – continue to carry on drilling for and burning fossil fuels.
Industries including banks, car and energy companies also make profits from fossil fuels. These industries are knowingly putting money over the future of our planet and the safety of its people.
What are world leaders doing to stop climate change?
With such a huge crisis facing the entire planet, the international response should be swift and decisive. Yet progress by world governments has been achingly slow. Many commitments to reduce carbon emissions have been set, but few are binding and targets are often missed.
In Paris in 2015, world leaders from 197 countries pledged to put people first and reduce their countries’ greenhouse gas emissions. The Paris agreement has the aim of limiting global warming to well below 2ºC and ideally to 1.5°C.
If governments act swiftly on the promises they made in the Paris climate agreement, and implement the solutions now, there’s still hope of avoiding the worst consequences of climate change .
World leaders and climate negotiators meet at annual COPs – which stands for Conference of the Parties (the countries that signed the United Nations Framework Convention on Climate Change, or UNFCCC).
At COPs and other climate talks, nations take stock of their ability to meet their commitments to reduce emissions.
Recently, talks have focused on climate finance – money to help poorer countries adapt to climate change and reduce emissions. Rich countries have pledged $100 billion in annual funding to help developing countries reduce emissions and manage the impacts of climate change. This is yet to materialise, and much more money is needed.
As the impacts of climate change are increasing, important talks have also started on “loss and damage” funding. This is money needed by worst-impacted countries to deal with extreme weather and other climate change impacts.
Global climate change activism
Around the world, millions of us are taking steps to defend our climate. People of all ages and from all walks of life are desperately demanding solutions to the climate emergency.
Over the years, Greenpeace has challenged oil companies chasing new fossil fuels to extract and burn. We’ve also called out the governments for their failure to act fast enough on the climate emergency. Greenpeace activists are ordinary people taking extraordinary action, to push the solutions to climate change.
Indigenous Peoples are most severely affected by both the causes and effects of climate change . They are often on the front lines, facing down deforestation or kicking out fossil fuel industries polluting their water supplies.
Communities in the Pacific Islands are facing sea level rises and more extreme weather. But they are using their strength and resilience to demand world leaders take quicker climate action.
For many of these communities, the fight against climate change is a fight for life itself.
Even in the UK, climate change is impacting people more severely. As a country with the wealth and power to really tackle climate change, it’s never been more important to demand action.
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Essay on Global Warming
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- Updated on
- Apr 27, 2024
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Being able to write an essay is an integral part of mastering any language. Essays form an integral part of many academic and scholastic exams like the SAT, and UPSC amongst many others. It is a crucial evaluative part of English proficiency tests as well like IELTS, TOEFL, etc. Major essays are meant to emphasize public issues of concern that can have significant consequences on the world. To understand the concept of Global Warming and its causes and effects, we must first examine the many factors that influence the planet’s temperature and what this implies for the world’s future. Here’s an unbiased look at the essay on Global Warming and other essential related topics.
Short Essay on Global Warming and Climate Change?
Since the industrial and scientific revolutions, Earth’s resources have been gradually depleted. Furthermore, the start of the world’s population’s exponential expansion is particularly hard on the environment. Simply put, as the population’s need for consumption grows, so does the use of natural resources , as well as the waste generated by that consumption.
Climate change has been one of the most significant long-term consequences of this. Climate change is more than just the rise or fall of global temperatures; it also affects rain cycles, wind patterns, cyclone frequencies, sea levels, and other factors. It has an impact on all major life groupings on the planet.
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What is Global Warming?
Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century, primarily due to the greenhouse gases released by people burning fossil fuels . The greenhouse gases consist of methane, nitrous oxide, ozone, carbon dioxide, water vapour, and chlorofluorocarbons. The weather prediction has been becoming more complex with every passing year, with seasons more indistinguishable, and the general temperatures hotter.
The number of hurricanes, cyclones, droughts, floods, etc., has risen steadily since the onset of the 21st century. The supervillain behind all these changes is Global Warming. The name is quite self-explanatory; it means the rise in the temperature of the Earth.
Also Read: What is a Natural Disaster?
What are the Causes of Global Warming?
According to recent studies, many scientists believe the following are the primary four causes of global warming:
- Deforestation
- Greenhouse emissions
- Carbon emissions per capita
Extreme global warming is causing natural disasters , which can be seen all around us. One of the causes of global warming is the extreme release of greenhouse gases that become trapped on the earth’s surface, causing the temperature to rise. Similarly, volcanoes contribute to global warming by spewing excessive CO2 into the atmosphere.
The increase in population is one of the major causes of Global Warming. This increase in population also leads to increased air pollution . Automobiles emit a lot of CO2, which remains in the atmosphere. This increase in population is also causing deforestation, which contributes to global warming.
The earth’s surface emits energy into the atmosphere in the form of heat, keeping the balance with the incoming energy. Global warming depletes the ozone layer, bringing about the end of the world. There is a clear indication that increased global warming will result in the extinction of all life on Earth’s surface.
Also Read: Land, Soil, Water, Natural Vegetation, and Wildlife Resources
Solutions for Global Warming
Of course, industries and multinational conglomerates emit more carbon than the average citizen. Nonetheless, activism and community effort are the only viable ways to slow the worsening effects of global warming. Furthermore, at the state or government level, world leaders must develop concrete plans and step-by-step programmes to ensure that no further harm is done to the environment in general.
Although we are almost too late to slow the rate of global warming, finding the right solution is critical. Everyone, from individuals to governments, must work together to find a solution to Global Warming. Some of the factors to consider are pollution control, population growth, and the use of natural resources.
One very important contribution you can make is to reduce your use of plastic. Plastic is the primary cause of global warming, and recycling it takes years. Another factor to consider is deforestation, which will aid in the control of global warming. More tree planting should be encouraged to green the environment. Certain rules should also govern industrialization. Building industries in green zones that affect plants and species should be prohibited.
Also Read: Essay on Pollution
Effects of Global Warming
Global warming is a real problem that many people want to disprove to gain political advantage. However, as global citizens, we must ensure that only the truth is presented in the media.
This decade has seen a significant impact from global warming. The two most common phenomena observed are glacier retreat and arctic shrinkage. Glaciers are rapidly melting. These are clear manifestations of climate change.
Another significant effect of global warming is the rise in sea level. Flooding is occurring in low-lying areas as a result of sea-level rise. Many countries have experienced extreme weather conditions. Every year, we have unusually heavy rain, extreme heat and cold, wildfires, and other natural disasters.
Similarly, as global warming continues, marine life is being severely impacted. This is causing the extinction of marine species as well as other problems. Furthermore, changes are expected in coral reefs, which will face extinction in the coming years. These effects will intensify in the coming years, effectively halting species expansion. Furthermore, humans will eventually feel the negative effects of Global Warming.
Also Read: Concept of Sustainable Development
Sample Essays on Global Warming
Here are some sample essays on Global Warming:
Essay on Global Warming Paragraph in 100 – 150 words
Global Warming is caused by the increase of carbon dioxide levels in the earth’s atmosphere and is a result of human activities that have been causing harm to our environment for the past few centuries now. Global Warming is something that can’t be ignored and steps have to be taken to tackle the situation globally. The average temperature is constantly rising by 1.5 degrees Celsius over the last few years.
The best method to prevent future damage to the earth, cutting down more forests should be banned and Afforestation should be encouraged. Start by planting trees near your homes and offices, participate in events, and teach the importance of planting trees. It is impossible to undo the damage but it is possible to stop further harm.
Also Read: Social Forestry
Essay on Global Warming in 250 Words
Over a long period, it is observed that the temperature of the earth is increasing. This affected wildlife, animals, humans, and every living organism on earth. Glaciers have been melting, and many countries have started water shortages, flooding, and erosion and all this is because of global warming.
No one can be blamed for global warming except for humans. Human activities such as gases released from power plants, transportation, and deforestation have increased gases such as carbon dioxide, CFCs, and other pollutants in the earth’s atmosphere. The main question is how can we control the current situation and build a better world for future generations. It starts with little steps by every individual.
Start using cloth bags made from sustainable materials for all shopping purposes, instead of using high-watt lights use energy-efficient bulbs, switch off the electricity, don’t waste water, abolish deforestation and encourage planting more trees. Shift the use of energy from petroleum or other fossil fuels to wind and solar energy. Instead of throwing out the old clothes donate them to someone so that it is recycled.
Donate old books, don’t waste paper. Above all, spread awareness about global warming. Every little thing a person does towards saving the earth will contribute in big or small amounts. We must learn that 1% effort is better than no effort. Pledge to take care of Mother Nature and speak up about global warming.
Also Read: Types of Water Pollution
Essay on Global Warming in 500 Words
Global warming isn’t a prediction, it is happening! A person denying it or unaware of it is in the most simple terms complicit. Do we have another planet to live on? Unfortunately, we have been bestowed with this one planet only that can sustain life yet over the years we have turned a blind eye to the plight it is in. Global warming is not an abstract concept but a global phenomenon occurring ever so slowly even at this moment. Global Warming is a phenomenon that is occurring every minute resulting in a gradual increase in the Earth’s overall climate. Brought about by greenhouse gases that trap the solar radiation in the atmosphere, global warming can change the entire map of the earth, displacing areas, flooding many countries, and destroying multiple lifeforms. Extreme weather is a direct consequence of global warming but it is not an exhaustive consequence. There are virtually limitless effects of global warming which are all harmful to life on earth. The sea level is increasing by 0.12 inches per year worldwide. This is happening because of the melting of polar ice caps because of global warming. This has increased the frequency of floods in many lowland areas and has caused damage to coral reefs. The Arctic is one of the worst-hit areas affected by global warming. Air quality has been adversely affected and the acidity of the seawater has also increased causing severe damage to marine life forms. Severe natural disasters are brought about by global warming which has had dire effects on life and property. As long as mankind produces greenhouse gases, global warming will continue to accelerate. The consequences are felt at a much smaller scale which will increase to become drastic shortly. The power to save the day lies in the hands of humans, the need is to seize the day. Energy consumption should be reduced on an individual basis. Fuel-efficient cars and other electronics should be encouraged to reduce the wastage of energy sources. This will also improve air quality and reduce the concentration of greenhouse gases in the atmosphere. Global warming is an evil that can only be defeated when fought together. It is better late than never. If we all take steps today, we will have a much brighter future tomorrow. Global warming is the bane of our existence and various policies have come up worldwide to fight it but that is not enough. The actual difference is made when we work at an individual level to fight it. Understanding its import now is crucial before it becomes an irrevocable mistake. Exterminating global warming is of utmost importance and each one of us is as responsible for it as the next.
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Essay on Global Warming UPSC
Always hear about global warming everywhere, but do we know what it is? The evil of the worst form, global warming is a phenomenon that can affect life more fatally. Global warming refers to the increase in the earth’s temperature as a result of various human activities. The planet is gradually getting hotter and threatening the existence of lifeforms on it. Despite being relentlessly studied and researched, global warming for the majority of the population remains an abstract concept of science. It is this concept that over the years has culminated in making global warming a stark reality and not a concept covered in books. Global warming is not caused by one sole reason that can be curbed. Multifarious factors cause global warming most of which are a part of an individual’s daily existence. Burning of fuels for cooking, in vehicles, and for other conventional uses, a large amount of greenhouse gases like carbon dioxide, and methane amongst many others is produced which accelerates global warming. Rampant deforestation also results in global warming as lesser green cover results in an increased presence of carbon dioxide in the atmosphere which is a greenhouse gas. Finding a solution to global warming is of immediate importance. Global warming is a phenomenon that has to be fought unitedly. Planting more trees can be the first step that can be taken toward warding off the severe consequences of global warming. Increasing the green cover will result in regulating the carbon cycle. There should be a shift from using nonrenewable energy to renewable energy such as wind or solar energy which causes less pollution and thereby hinder the acceleration of global warming. Reducing energy needs at an individual level and not wasting energy in any form is the most important step to be taken against global warming. The warning bells are tolling to awaken us from the deep slumber of complacency we have slipped into. Humans can fight against nature and it is high time we acknowledged that. With all our scientific progress and technological inventions, fighting off the negative effects of global warming is implausible. We have to remember that we do not inherit the earth from our ancestors but borrow it from our future generations and the responsibility lies on our shoulders to bequeath them a healthy planet for life to exist.
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Climate Change and Global Warming Essay
Global Warming and Climate Change are two sides of the same coin. Both are interrelated with each other and are two issues of major concern worldwide. Greenhouse gases released such as carbon dioxide, CFCs, and other pollutants in the earth’s atmosphere cause Global Warming which leads to climate change. Black holes have started to form in the ozone layer that protects the earth from harmful ultraviolet rays.
Human activities have created climate change and global warming. Industrial waste and fumes are the major contributors to global warming.
Another factor affecting is the burning of fossil fuels, deforestation and also one of the reasons for climate change. Global warming has resulted in shrinking mountain glaciers in Antarctica, Greenland, and the Arctic and causing climate change. Switching from the use of fossil fuels to energy sources like wind and solar.
When buying any electronic appliance buy the best quality with energy savings stars. Don’t waste water and encourage rainwater harvesting in your community.
Also Read: Essay on Air Pollution
Tips to Write an Essay
Writing an effective essay needs skills that few people possess and even fewer know how to implement. While writing an essay can be an assiduous task that can be unnerving at times, some key pointers can be inculcated to draft a successful essay. These involve focusing on the structure of the essay, planning it out well, and emphasizing crucial details.
Mentioned below are some pointers that can help you write better structure and more thoughtful essays that will get across to your readers:
- Prepare an outline for the essay to ensure continuity and relevance and no break in the structure of the essay
- Decide on a thesis statement that will form the basis of your essay. It will be the point of your essay and help readers understand your contention
- Follow the structure of an introduction, a detailed body followed by a conclusion so that the readers can comprehend the essay in a particular manner without any dissonance.
- Make your beginning catchy and include solutions in your conclusion to make the essay insightful and lucrative to read
- Reread before putting it out and add your flair to the essay to make it more personal and thereby unique and intriguing for readers
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Ans. Both natural and man-made factors contribute to global warming. The natural one also contains methane gas, volcanic eruptions, and greenhouse gases. Deforestation, mining, livestock raising, burning fossil fuels, and other man-made causes are next.
Ans. The government and the general public can work together to stop global warming. Trees must be planted more often, and deforestation must be prohibited. Auto usage needs to be curbed, and recycling needs to be promoted.
Ans. Switching to renewable energy sources , adopting sustainable farming, transportation, and energy methods, and conserving water and other natural resources.
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Digvijay Singh
Having 2+ years of experience in educational content writing, withholding a Bachelor's in Physical Education and Sports Science and a strong interest in writing educational content for students enrolled in domestic and foreign study abroad programmes. I believe in offering a distinct viewpoint to the table, to help students deal with the complexities of both domestic and foreign educational systems. Through engaging storytelling and insightful analysis, I aim to inspire my readers to embark on their educational journeys, whether abroad or at home, and to make the most of every learning opportunity that comes their way.
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This was really a good essay on global warming… There has been used many unic words..and I really liked it!!!Seriously I had been looking for a essay about Global warming just like this…
Thank you for the comment!
I want to learn how to write essay writing so I joined this page.This page is very useful for everyone.
Hi, we are glad that we could help you to write essays. We have a beginner’s guide to write essays ( https://leverageedu.com/blog/essay-writing/ ) and we think this might help you.
It is not good , to have global warming in our earth .So we all have to afforestation program on all the world.
thank you so much
Very educative , helpful and it is really going to strength my English knowledge to structure my essay in future
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Global warming is the increase in 𝓽𝓱𝓮 ᴀᴠᴇʀᴀɢᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇs ᴏғ ᴇᴀʀᴛʜ🌎 ᴀᴛᴍᴏsᴘʜᴇʀᴇ
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- ENVIRONMENT
How global warming is disrupting life on Earth
The signs of global warming are everywhere, and are more complex than just climbing temperatures.
Our planet is getting hotter. Since the Industrial Revolution—an event that spurred the use of fossil fuels in everything from power plants to transportation—Earth has warmed by 1 degree Celsius, about 2 degrees Fahrenheit.
That may sound insignificant, but 2023 was the hottest year on record , and all 10 of the hottest years on record have occurred in the past decade.
Global warming and climate change are often used interchangeably as synonyms, but scientists prefer to use “climate change” when describing the complex shifts now affecting our planet’s weather and climate systems.
Climate change encompasses not only rising average temperatures but also natural disasters, shifting wildlife habitats, rising seas , and a range of other impacts. All of these changes are emerging as humans continue to add heat-trapping greenhouse gases , like carbon dioxide and methane, to the atmosphere.
What causes global warming?
When fossil fuel emissions are pumped into the atmosphere, they change the chemistry of our atmosphere, allowing sunlight to reach the Earth but preventing heat from being released into space. This keeps Earth warm, like a greenhouse, and this warming is known as the greenhouse effect .
Carbon dioxide is the most commonly found greenhouse gas and about 75 percent of all the climate warming pollution in the atmosphere. This gas is a product of producing and burning oil, gas, and coal. About a quarter of Carbon dioxide also results from land cleared for timber or agriculture.
Methane is another common greenhouse gas. Although it makes up only about 16 percent of emissions, it's roughly 25 times more potent than carbon dioxide and dissipates more quickly. That means methane can cause a large spark in warming, but ending methane pollution can also quickly limit the amount of atmospheric warming. Sources of this gas include agriculture (mostly livestock), leaks from oil and gas production, and waste from landfills.
What are the effects of global warming?
One of the most concerning impacts of global warming is the effect warmer temperatures will have on Earth's polar regions and mountain glaciers. The Arctic is warming four times faster than the rest of the planet. This warming reduces critical ice habitat and it disrupts the flow of the jet stream, creating more unpredictable weather patterns around the globe.
( Learn more about the jet stream. )
A warmer planet doesn't just raise temperatures. Precipitation is becoming more extreme as the planet heats. For every degree your thermometer rises, the air holds about seven percent more moisture. This increase in moisture in the atmosphere can produce flash floods, more destructive hurricanes, and even paradoxically, stronger snow storms.
The world's leading scientists regularly gather to review the latest research on how the planet is changing. The results of this review is synthesized in regularly published reports known as the Intergovernmental Panel on Climate Change (IPCC) reports.
A recent report outlines how disruptive a global rise in temperature can be:
- Coral reefs are now a highly endangered ecosystem. When corals face environmental stress, such as high heat, they expel their colorful algae and turn a ghostly white, an effect known as coral bleaching . In this weakened state, they more easily die.
- Trees are increasingly dying from drought , and this mass mortality is reshaping forest ecosystems.
- Rising temperatures and changing precipitation patterns are making wildfires more common and more widespread. Research shows they're even moving into the eastern U.S. where fires have historically been less common.
- Hurricanes are growing more destructive and dumping more rain, an effect that will result in more damage. Some scientists say we even need to be preparing for Cat 6 storms . (The current ranking system ends at Cat 5.)
How can we limit global warming?
Limiting the rising in global warming is theoretically achievable, but politically, socially, and economically difficult.
Those same sources of greenhouse gas emissions must be limited to reduce warming. For example, oil and gas used to generate electricity or power industrial manufacturing will need to be replaced by net zero emission technology like wind and solar power. Transportation, another major source of emissions, will need to integrate more electric vehicles, public transportation, and innovative urban design, such as safe bike lanes and walkable cities.
( Learn more about solutions to limit global warming. )
One global warming solution that was once considered far fetched is now being taken more seriously: geoengineering. This type of technology relies on manipulating the Earth's atmosphere to physically block the warming rays of the sun or by sucking carbon dioxide straight out of the sky.
Restoring nature may also help limit warming. Trees, oceans, wetlands, and other ecosystems help absorb excess carbon—but when they're lost, so too is their potential to fight climate change.
Ultimately, we'll need to adapt to warming temperatures, building homes to withstand sea level rise for example, or more efficiently cooling homes during heat waves.
Related Topics
- CLIMATE CHANGE
- ENVIRONMENT AND CONSERVATION
- POLAR REGIONS
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1. Spread the word
Encourage your friends, family and co-workers to reduce their carbon pollution. Join a global movement like Count Us In, which aims to inspire 1 billion people to take practical steps and challenge their leaders to act more boldly on climate. Organizers of the platform say that if 1 billion people took action, they could reduce as much as 20 per cent of global carbon emissions. Or you could sign up to the UN’s #ActNow campaign on climate change and sustainability and add your voice to this critical global debate.
![the solution of global warming essay Young women at a climate change protest.](https://cdn.unenvironment.org/s3fs-public/inline-images/callum-shaw-7SE389kUVGw-unsplash.jpeg)
2. Keep up the political pressure
Lobby local politicians and businesses to support efforts to cut emissions and reduce carbon pollution. #ActNow Speak Up has sections on political pressure and corporate action - and Count Us In also has some handy tips for how to do this. Pick an environmental issue you care about, decide on a specific request for change and then try to arrange a meeting with your local representative. It might seem intimidating but your voice deserves to be heard. If humanity is to succeed in tackling the climate emergency, politicians must be part of the solution. It’s up to all of us to keep up with the pressure.
![the solution of global warming essay Two people riding bikes.](https://cdn.unenvironment.org/s3fs-public/inline-images/coen-van-de-broek-OFyh9TpMyM8-unsplash.jpeg)
3. Transform your transport
Transport accounts for around a quarter of all greenhouse gas emissions and across the world, many governments are implementing policies to decarbonize travel. You can get a head start: leave your car at home and walk or cycle whenever possible. If the distances are too great, choose public transport, preferably electric options. If you must drive, offer to carpool with others so that fewer cars are on the road. Get ahead of the curve and buy an electric car. Reduce the number of long-haul flights you take.
![the solution of global warming essay Houses with solar panels on their roofs.](https://cdn.unenvironment.org/s3fs-public/inline-images/jeremy-bezanger-k8HniqcdYS4-unsplash.jpeg)
4. Rein in your power use
If you can, switch to a zero-carbon or renewable energy provider. Install solar panels on your roof. Be more efficient: turn your heating down a degree or two, if possible. Switch off appliances and lights when you are not using them and better yet buy the most efficient products in the first place (hint: this will save you money!). Insulate your loft or roof: you’ll be warmer in the winter, cooler in the summer and save some money too.
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5. Tweak your diet
Eat more plant-based meals – your body and the planet will thank you. Today, around 60 per cent of the world’s agricultural land is used for livestock grazing and people in many countries are consuming more animal-sourced food than is healthy. Plant-rich diets can help reduce chronic illnesses, such as heart disease, stroke, diabetes and cancer.
![the solution of global warming essay A woman holds strawberries in her hands.](https://cdn.unenvironment.org/s3fs-public/inline-images/artur-rutkowski-GdTLaWamFHw-unsplash.jpeg)
The climate emergency demands action from all of us. We need to get to net zero greenhouse gas emissions by 2050 and everyone has a role to play.
6. Shop local and buy sustainable
To reduce your food’s carbon footprint, buy local and seasonal foods. You’ll be helping small businesses and farms in your area and reducing fossil fuel emissions associated with transport and cold chain storage. Sustainable agriculture uses up to 56 per cent less energy, creates 64 per cent fewer emissions and allows for greater levels of biodiversity than conventional farming. Go one step further and try growing your own fruit, vegetables and herbs. You can plant them in a garden, on a balcony or even on a window sill. Set up a community garden in your neighbourhood to get others involved.
![the solution of global warming essay A rotten banana.](https://cdn.unenvironment.org/s3fs-public/inline-images/charles-deluvio-ILYDgtHZ9PE-unsplash.jpeg)
7. Don’t waste food
One-third of all food produced is either lost or wasted. According to UNEP’s Food Waste Index Report 2021 , people globally waste 1 billion tonnes of food each year, which accounts for around 8-10 per cent of global greenhouse gas emissions. Avoid waste by only buying what you need. Take advantage of every edible part of the foods you purchase. Measure portion sizes of rice and other staples before cooking them, store food correctly (use your freezer if you have one), be creative with leftovers, share extras with your friends and neighbours and contribute to a local food-sharing scheme. Make compost out of inedible remnants and use it to fertilize your garden. Composting is one of the best options for managing organic waste while also reducing environmental impacts.
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8. Dress (climate) smart
The fashion industry accounts for 8-10 per cent of global carbon emissions – more than all international flights and maritime shipping combined – and ‘fast fashion’ has created a throwaway culture that sees clothes quickly end up in landfills. But we can change this. Buy fewer new clothes and wear them longer. Seek out sustainable labels and use rental services for special occasions rather than buying new items that will only be worn once. Recycle pre-loved clothes and repair when necessary.
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9. Plant trees
Every year approximately 12 million hectares of forest are destroyed and this deforestation, together with agriculture and other land use changes, is responsible for roughly 25 per cent of global greenhouse gas emissions. We can all play a part in reversing this trend by planting trees, either individually or as part of a collective. For example, the Plant-for-the-Planet initiative allows people to sponsor tree-planting around the world.
Check out this UNEP guide to see what else you can do as part of the UN Decade on Ecosystem Restoration , a global drive to halt the degradation of land and oceans, protect biodiversity, and rebuild ecosystems.
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10. Focus on planet-friendly investments
Individuals can also spur change through their savings and investments by choosing financial institutions that do not invest in carbon-polluting industries. #ActNow Speak Up has a section on money and so does Count Us In . This sends a clear signal to the market and already many financial institutions are offering more ethical investments, allowing you to use your money to support causes you believe in and avoid those you don’t. You can ask your financial institution about their responsible banking policies and find out how they rank in independent research.
UNEP is at the front in support of the Paris Agreement goal of keeping the global temperature rise well below 2°C, and aiming - to be safe - for 1.5°C, compared to pre-industrial levels. To do this, UNEP has developed a Six-Sector Solution . The Six Sector Solution is a roadmap to reducing emissions across sectors in line with the Paris Agreement commitments and in pursuit of climate stability. The six sectors identified are Energy; Industry; Agriculture & Food; Forests & Land Use; Transport; and Buildings & Cities.
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global warming summary
Learn about the causes and effects of global warming.
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global warming , Increase in the global average surface temperature resulting from enhancement of the greenhouse effect, primarily by air pollution . In 2007 the UN Intergovernmental Panel on Climate Change forecast that by 2100 global average surface temperatures would increase 3.2–7.2 °F (1.8–4.0 °C), depending on a range of scenarios for greenhouse gas emissions, and stated that it was now 90 percent certain that most of the warming observed over the previous half century could be attributed to greenhouse gas emissions produced by human activities (i.e., industrial processes and transportation). Many scientists predict that such an increase in temperature would cause polar ice caps and mountain glaciers to melt rapidly, significantly raising the levels of coastal waters, and would produce new patterns and extremes of drought and rainfall, seriously disrupting food production in certain regions. Other scientists maintain that such predictions are overstated. The 1992 Earth Summit and the 1997 Kyoto Protocol to the United Nations Framework Convention on Climate Change attempted to address the issue of global warming, but in both cases the efforts were hindered by conflicting national economic agendas and disputes between developed and developing nations over the cost and consequences of reducing emissions of greenhouse gases.
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The future of climate health research: An urgent call for equitable action- and solution-oriented science
Garcia, Erika a,* ; Eckel, Sandrah P. a ; Silva, Sam J. a,b,c ; McConnell, Rob a ; Johnston, Jill a ; Sanders, Kelly T. c ; Habre, Rima a,d ; Baccarelli, Andrea e
a Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, California
b Department of Earth Sciences, University of Southern California, Los Angeles, California
c Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, California
d Spatial Sciences Institute, University of Southern California, Los Angeles, California
e Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
Published online 21 August 2024
Received 17 May, 2024; Accepted 27 July, 2024
Supported by grant # P30ES007048 from the National Institute of Environmental Health Sciences.
*Corresponding Author. Address: Division of Environmental Health, Department of Population and Public Health Sciences, Keck School of Medicine of USC, 1845 N. Soto Street, SSB1 MC 9237, Los Angeles, CA 90089-9237. Email: [email protected] (E. Garcia).
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND) , where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.
Introduction
Climate change is vastly affecting our world, with significant repercussions on human society. 1 With risks including storms, extreme heat, infrastructure damage, air pollution, disease vectors, human displacement, and social dynamics, climate change is affecting nearly all aspects of our lives and our health—with disparate effects across populations. As these impacts become more acute and frequent with time, urgency is growing for climate and health researchers to engage in action- and solution-oriented research.
The potential public health consequences of climate change have been studied in the scientific community for decades 2 —long before we began seeing the current dramatic climatic effects. As these effects have become more frequent, more severe, and more devastating, climate health research has grown significantly. 3 Most existing research focuses on quantifying exposure-response effects for topics with a wealth of existent data, such as morbidity and mortality due to heat and air pollution, especially in urban-dwelling populations. 3 While these studies are valuable and an important first step toward action, we now also need innovative, solutions-driven science to rigorously test and advance actionable and effective solutions that protect human health. There remain significant gaps in our understanding of how to effectively and equitably combat adverse climate change impacts on human health.
Yet filling these gaps is not easy. Climate change is a multifaceted problem with complex roots and diverse yet intertwined drivers and effects. Climate-related hazardous exposures can include long-term trends as well as episodic occurrences and, importantly, do not occur in isolation. Although the root causes driving climate change (i.e., greenhouse gas emissions) can be regulated, we cannot directly regulate most climate-related hazards and environmental exposures that affect human health (e.g., storms, droughts, temperatures, wildfire smoke, and vectors). Thus, the usual approach of quantifying exposure-response, which works well for informing environmental regulations, is not sufficient for climate health research. We must approach the problem differently and push our science further to inform more comprehensively environmental and health policies and interventions.
Climate change and its health impacts are an unprecedented long-term global challenge. We need to quantify the health effects of climate change adaptation and mitigation strategies; we need to understand how and why different populations experience different magnitudes of effects, including more locally relevant and contextualized science; and we need robust projections of future health risks. 4 Many studies have examined these questions, yet we need to move toward more actionable science and data so as to inform effective equitable solutions that can reduce the health burden of climate change.
We present this commentary—directed at public health researchers and transdisciplinary collaborators—to advocate for adopting an action- and solution-oriented approach to climate health research, meaning it must be designed to directly inform actionable solutions to address health risks conferred by climate change rather than simply making observations. This perspective has been expressed by others, including the National Institutes of Health. 5 , 6 We lay out a set of specific suggestions, and end by highlighting a couple of lessons from the COVID-19 pandemic—a global event that shares similarities with climate change and illustrates the possibility of timely collaborations and solutions and underscored inequities. Additionally, we cannot allow findings to languish, hoping they will eventually be translated into action. We need to make sure climate health research is directly impactful, locally grounded, or contextualized, and that it reaches the appropriate audiences in a timely manner to implement science into solutions.
Action- and solution-oriented approach to climate health research
We suggest the following four action- and solution-oriented areas of focus, some of which share common elements, for future climate health research. To be clear, these areas are not new or comprehensive but are worthy of new focused intensity. We first present an example study, and then describe the focus area more broadly. We should study:
1. Health co-benefits of existing and new climate change mitigation strategies
A California study provided data demonstrating that adoption of zero-emission vehicles—an important climate change mitigation strategy—is already positively impacting human health, despite relatively low average adoption rates to date. 7 Yet communities who have the most to gain due to disproportionate traffic-related air pollution exposure may not be fully benefiting due to low adoption, likely driven by structural and systemic barriers impacting economic and societal opportunities and infrastructure. This type of research quantifying health co-benefits felt in the short term is important not only to inform future climate change mitigation policies (e.g., through cost-benefit analyses) but also to make sure implemented strategies and related health co-benefits do not perpetuate historical disparities.
Climate change mitigation strategies (e.g., decreasing greenhouse gas emissions) remain of paramount importance to reduce climate change and its multiple consequences. Yet we still lack empirical data on the consequent human impacts of many of these strategies. Do climate change mitigation strategies that decrease the rate of global warming also have co-benefits for human health? Are there unintended or inequitable adverse health impacts? (e.g., cobalt mining for electric vehicle batteries. 8 ) Data-based evidence is needed to assess whether strategies are functioning as intended and to understand their simultaneous impact on our health. This evidence can guide the prioritization and specificity of strategy implementation.
It is important to understand not only the human health impacts of our response to climate change but also how these impacts are distributed across populations, which often is inequitable. 1 Only with such information can we ensure the policies and strategies to respond to climate change meet the WHO Sustainable Development Goals mandate to “leave no one behind.” Because new mitigation strategies are constantly being developed and implemented, we also need to understand how these function together with existing or legacy strategies so that we maximize benefits and minimize harms to different populations, especially those who have been historically marginalized.
2. Health effects of climate change adaptation strategies to optimize benefits in different populations
Greenspaces can offset the adverse health impacts of high heat, especially in urban areas. A recent cross-population study examining 452 locations from 24 countries revealed that cities with overall more greenspace have generally reduced risk of heat-related mortality. 9 The authors then estimated mortality reductions under hypothetical scenarios of increased greenspace, for example, a 9% reduction in all-cause mortality with a 20% increase in greenspace. Such broad-scale studies, combined with a counterfactual approach provide important guidance for adaptation strategies. Especially if they consider more dynamic intervention scenarios, such as targeting high-risk populations rather than considering a one-size-fits-all approach (e.g., 10 ).
To maximize their health benefits adaptation strategies must be suited to the local population because climate change does not similarly affect all populations. To guide such tailored strategies, we need data characterizing the effects of different climate adaptation strategies in different populations. For example, we can leverage natural experiments when governmental agencies or community organizations launch new adaptation policies or interventions, comprehensively gauging for whom they did and did not work, and whether and how to translate those findings to other populations.
Further, the health effects of climate change are not only geographically diverse but also highly influenced by social dynamics and psychological barriers within different populations. Factors such as social norms, access to healthcare and other resources, and mental resilience can all influence how adaptation strategies are received and implemented. Adaptation strategies must be flexible and suited to diverse social, clinical, and biological characteristics. Understanding the psychological barriers that might inhibit adaptation—like misinformation, fatalism, or cognitive dissonance—is key to crafting policies that are not only effective but also culturally and socially sensitive. Similarly, recognizing social dynamics, such as power relations and community structure, can better inform the design and deployment of adaptation measures.
3. Effect heterogeneity by characteristics of the climate hazards and/or exposed populations
An analysis of heterogeneity in the health impacts of historic tropical cyclone data showed that max sustained windspeed was the strongest driver of mortality and respiratory risk from tropical cyclones, providing important information for at-risk communities to translate into approaches to keep residents safe during future events. 11 Such implementable information would be impossible to dissect by simply analyzing all tropical cyclones and the effected populations as homogenous groups of outcomes and people. Analogous modeling approaches could be applied to similarly predict risk, identify vulnerable populations and key risk features for other extreme weather and climate events, and to inform tailored strategies to minimize future risk.
Specific characteristics of the climate hazards themselves or of the local conditions and adaptive capacity, as well as underlying population vulnerabilities, can modify the effects of climate hazards. While some climate health studies have examined the impacts of a climate hazard by sociodemographic characteristics of affected populations, many gaps remain, including how relevant sociodemographic characteristics intersect to personalize risk. 4 We should aim to examine effect heterogeneity when feasible in climate health studies (e.g., statistically possible, mechanistically/biologically reasonable). Understanding the distribution of risks is critical to determine if what we are doing in terms of climate health interventions is appropriate and effective, and to ensure action is equitable.
4. Health effects of co-occurring climate events
Co-occurring climate-related effects especially highlight widening social disparities, as seen with the effects of Texas Winter Storm Uri in 2021. People were experiencing not only the storm itself but also widespread power and water outages. The duration of those outages, however, varied across populations (likely driven by structural and systemic bias, e.g., differential investment in infrastructure), with Black households experiencing significantly longer power outages and water outages compared with non-Hispanic White households. 12 Such data quantify the variance in reliability and resilience of essential infrastructure—whose failure could further exacerbate climate hazards 13 —and are critical to guide policy decisions and strategies to equitably protect human health (e.g., guiding investments for the Justice40 Initiative 14 ).
Health-threatening environmental exposures due to climate change do not happen in isolation. For example, extreme heat exposure may occur in tandem with high air pollution due to wildfires or with increased food insecurity due to agricultural impacts, both sets of which can have cumulative effects on the health of exposed individuals. 15 Further, infrastructure damage due to extreme weather events may simultaneously and additively strain a population’s health. 16 Climate change is predicted to increase the prevalence and severity of future extreme weather events, further stressing infrastructure and affecting health-relevant factors such as power delivery and road access. 13 Co-occurring events will become more frequent, greatly increasing the health-related impacts of climate change. 17 We must consider these co-exposures and their cumulative effects on exposed populations if we are to develop effective strategies to guard human health.
Moving forward—multifaceted solutions for a multifaceted problem
To adequately address the current gaps in climate health research, we need collaborative, transdisciplinary efforts that engage diverse researchers who together can develop and conduct more actionable and synergistic science across a range of disciplines. Effective strategies to address the health threats of climate change must extend from the lab bench to the park bench—incorporating research ranging from molecules to populations, from epigenomics to housing standards. We must not only focus on mechanistic experimental studies but also on social approaches that consider how individuals, their communities, and decision-makers act.
While global-scale problems demand global-scale solutions, it would be a mistake to overlook the power of listening to local communities and stakeholders to facilitate local action in mitigating the health impacts of climate change. Locally focused research can identify community-specific vulnerabilities and needs, cultural considerations, and available resources that may not be visible through a broader lens. Accordingly, community engagement is critical to ensure focus on the needs of the most vulnerable and at-risk populations. Climate health research must ensure that the frontline knowledge of affected communities is valued and that these communities are partners in co-developing equitable and effective solutions. By using community engagement combined with local data, we can build models of intervention that can be adapted and scaled for broader contexts.
Perhaps most importantly, action-oriented research must be followed by action. To better support evidence-based decision-making now and into the future, we must ensure that appropriate research reaches audiences capable of impacting policies and solutions. This requires effective science communication that targets audiences beyond academic journals, such as affected populations and relevant stakeholders. Only through more widespread dissemination and effective outreach through a variety of communication tools can we achieve a critical mass worldwide to effectively implement strategies to address the looming threat of climate change.
Finally, we want to leave you with two key lessons learned from the COVID-19 pandemic. Despite missed opportunities in the response to the pandemic, its global nature provides parallels to the topic at hand. First, we learned that with enough attention and effort devoted to a topic, we can generate solutions very rapidly (e.g., development of the vaccine 18 ). Applying the same urgency and attention to climate health research could lead to effective solutions implemented in a timely manner. Second, the pandemic laid bare the disproportionate impact on historically marginalized populations, 19 , 20 which—as reviewed above—is also a hallmark of climate change impacts. We can and must apply this lesson as we design climate health studies and implement health-protective solutions to climate change to ensure equity across populations, particularly those who are at the highest risk—who often, especially on a global scale, contributed the least to climate change.
“[With climate change] the rich will find their world to be more expensive, inconvenient, uncomfortable, disrupted, and colorless—in general, more unpleasant and unpredictable, perhaps greatly so. The poor will die .” –Kirk R. Smith, PhD, MPH (1947–2020).
Conflicts of interest statement
The authors declare that they have no conflicts of interest with regard to the content of this report.
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Climate Change: Evidence and Causes: Update 2020 (2020)
Chapter: conclusion, c onclusion.
This document explains that there are well-understood physical mechanisms by which changes in the amounts of greenhouse gases cause climate changes. It discusses the evidence that the concentrations of these gases in the atmosphere have increased and are still increasing rapidly, that climate change is occurring, and that most of the recent change is almost certainly due to emissions of greenhouse gases caused by human activities. Further climate change is inevitable; if emissions of greenhouse gases continue unabated, future changes will substantially exceed those that have occurred so far. There remains a range of estimates of the magnitude and regional expression of future change, but increases in the extremes of climate that can adversely affect natural ecosystems and human activities and infrastructure are expected.
Citizens and governments can choose among several options (or a mixture of those options) in response to this information: they can change their pattern of energy production and usage in order to limit emissions of greenhouse gases and hence the magnitude of climate changes; they can wait for changes to occur and accept the losses, damage, and suffering that arise; they can adapt to actual and expected changes as much as possible; or they can seek as yet unproven “geoengineering” solutions to counteract some of the climate changes that would otherwise occur. Each of these options has risks, attractions and costs, and what is actually done may be a mixture of these different options. Different nations and communities will vary in their vulnerability and their capacity to adapt. There is an important debate to be had about choices among these options, to decide what is best for each group or nation, and most importantly for the global population as a whole. The options have to be discussed at a global scale because in many cases those communities that are most vulnerable control few of the emissions, either past or future. Our description of the science of climate change, with both its facts and its uncertainties, is offered as a basis to inform that policy debate.
A CKNOWLEDGEMENTS
The following individuals served as the primary writing team for the 2014 and 2020 editions of this document:
- Eric Wolff FRS, (UK lead), University of Cambridge
- Inez Fung (NAS, US lead), University of California, Berkeley
- Brian Hoskins FRS, Grantham Institute for Climate Change
- John F.B. Mitchell FRS, UK Met Office
- Tim Palmer FRS, University of Oxford
- Benjamin Santer (NAS), Lawrence Livermore National Laboratory
- John Shepherd FRS, University of Southampton
- Keith Shine FRS, University of Reading.
- Susan Solomon (NAS), Massachusetts Institute of Technology
- Kevin Trenberth, National Center for Atmospheric Research
- John Walsh, University of Alaska, Fairbanks
- Don Wuebbles, University of Illinois
Staff support for the 2020 revision was provided by Richard Walker, Amanda Purcell, Nancy Huddleston, and Michael Hudson. We offer special thanks to Rebecca Lindsey and NOAA Climate.gov for providing data and figure updates.
The following individuals served as reviewers of the 2014 document in accordance with procedures approved by the Royal Society and the National Academy of Sciences:
- Richard Alley (NAS), Department of Geosciences, Pennsylvania State University
- Alec Broers FRS, Former President of the Royal Academy of Engineering
- Harry Elderfield FRS, Department of Earth Sciences, University of Cambridge
- Joanna Haigh FRS, Professor of Atmospheric Physics, Imperial College London
- Isaac Held (NAS), NOAA Geophysical Fluid Dynamics Laboratory
- John Kutzbach (NAS), Center for Climatic Research, University of Wisconsin
- Jerry Meehl, Senior Scientist, National Center for Atmospheric Research
- John Pendry FRS, Imperial College London
- John Pyle FRS, Department of Chemistry, University of Cambridge
- Gavin Schmidt, NASA Goddard Space Flight Center
- Emily Shuckburgh, British Antarctic Survey
- Gabrielle Walker, Journalist
- Andrew Watson FRS, University of East Anglia
The Support for the 2014 Edition was provided by NAS Endowment Funds. We offer sincere thanks to the Ralph J. and Carol M. Cicerone Endowment for NAS Missions for supporting the production of this 2020 Edition.
F OR FURTHER READING
For more detailed discussion of the topics addressed in this document (including references to the underlying original research), see:
- Intergovernmental Panel on Climate Change (IPCC), 2019: Special Report on the Ocean and Cryosphere in a Changing Climate [ https://www.ipcc.ch/srocc ]
- National Academies of Sciences, Engineering, and Medicine (NASEM), 2019: Negative Emissions Technologies and Reliable Sequestration: A Research Agenda [ https://www.nap.edu/catalog/25259 ]
- Royal Society, 2018: Greenhouse gas removal [ https://raeng.org.uk/greenhousegasremoval ]
- U.S. Global Change Research Program (USGCRP), 2018: Fourth National Climate Assessment Volume II: Impacts, Risks, and Adaptation in the United States [ https://nca2018.globalchange.gov ]
- IPCC, 2018: Global Warming of 1.5°C [ https://www.ipcc.ch/sr15 ]
- USGCRP, 2017: Fourth National Climate Assessment Volume I: Climate Science Special Reports [ https://science2017.globalchange.gov ]
- NASEM, 2016: Attribution of Extreme Weather Events in the Context of Climate Change [ https://www.nap.edu/catalog/21852 ]
- IPCC, 2013: Fifth Assessment Report (AR5) Working Group 1. Climate Change 2013: The Physical Science Basis [ https://www.ipcc.ch/report/ar5/wg1 ]
- NRC, 2013: Abrupt Impacts of Climate Change: Anticipating Surprises [ https://www.nap.edu/catalog/18373 ]
- NRC, 2011: Climate Stabilization Targets: Emissions, Concentrations, and Impacts Over Decades to Millennia [ https://www.nap.edu/catalog/12877 ]
- Royal Society 2010: Climate Change: A Summary of the Science [ https://royalsociety.org/topics-policy/publications/2010/climate-change-summary-science ]
- NRC, 2010: America’s Climate Choices: Advancing the Science of Climate Change [ https://www.nap.edu/catalog/12782 ]
Much of the original data underlying the scientific findings discussed here are available at:
- https://data.ucar.edu/
- https://climatedataguide.ucar.edu
- https://iridl.ldeo.columbia.edu
- https://ess-dive.lbl.gov/
- https://www.ncdc.noaa.gov/
- https://www.esrl.noaa.gov/gmd/ccgg/trends/
- http://scrippsco2.ucsd.edu
- http://hahana.soest.hawaii.edu/hot/
was established to advise the United States on scientific and technical issues when President Lincoln signed a Congressional charter in 1863. The National Research Council, the operating arm of the National Academy of Sciences and the National Academy of Engineering, has issued numerous reports on the causes of and potential responses to climate change. Climate change resources from the National Research Council are available at . | |
is a self-governing Fellowship of many of the world’s most distinguished scientists. Its members are drawn from all areas of science, engineering, and medicine. It is the national academy of science in the UK. The Society’s fundamental purpose, reflected in its founding Charters of the 1660s, is to recognise, promote, and support excellence in science, and to encourage the development and use of science for the benefit of humanity. More information on the Society’s climate change work is available at |
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Climate change is one of the defining issues of our time. It is now more certain than ever, based on many lines of evidence, that humans are changing Earth's climate. The Royal Society and the US National Academy of Sciences, with their similar missions to promote the use of science to benefit society and to inform critical policy debates, produced the original Climate Change: Evidence and Causes in 2014. It was written and reviewed by a UK-US team of leading climate scientists. This new edition, prepared by the same author team, has been updated with the most recent climate data and scientific analyses, all of which reinforce our understanding of human-caused climate change.
Scientific information is a vital component for society to make informed decisions about how to reduce the magnitude of climate change and how to adapt to its impacts. This booklet serves as a key reference document for decision makers, policy makers, educators, and others seeking authoritative answers about the current state of climate-change science.
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Thus, it will result in global warming. Steps must be taken immediately to stop global warming and make the earth better again. Get the huge list of more than 500 Essay Topics and Ideas. Global Warming Solutions. As stated earlier, it might be challenging but it is not entirely impossible. Global warming can be stopped when combined efforts are ...
Global warming, the phenomenon of rising average air temperatures near Earth's surface over the past 100 to 200 years. Although Earth's climate has been evolving since the dawn of geologic time, human activities since the Industrial Revolution have a growing influence over the pace and extent of climate change.
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This example global warming essay discusses the causes of this environmental change along with the effects of the warming of our planet and how to prevent it in the future. ... A comprehensive solution to global warming would be to curtail carbon emissions further through innovations in alternative energy, combined with a plan to minimize ...
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Going Further. Option 1: Develop a climate plan. Scientists say that in order to prevent the average global temperature from rising more than 1.5 degrees Celsius, the threshold beyond which the ...
Experts say it is likely many strategies working together will be needed. Generally speaking, here are some examples of mitigation strategies we can use to slow or stop the human-caused global warming ( learn more ): Where possible, we can switch to renewable sources of energy (such as solar and wind energy) to power our homes and buildings ...
Global warming is the long-term warming of the planet's overall temperature. Though this warming trend has been going on for a long time, its pace has significantly increased in the last hundred years due to the burning of fossil fuels.As the human population has increased, so has the volume of . fossil fuels burned.. Fossil fuels include coal, oil, and natural gas, and burning them causes ...
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Global Warming is a long-term increase in average global temperature. It is considered a natural phenomenon, but anthropogenic activities on earth, particularly post Industrial Revolution, have led to an increase in the rate of this temperature increase. Various Reports published by the International Panel on Climate Change (IPCC) have time and ...
The Paris agreement has the aim of limiting global warming to well below 2ºC and ideally to 1.5°C. If governments act swiftly on the promises they made in the Paris climate agreement, and implement the solutions now, there's still hope of avoiding the worst consequences of climate change.
Global Warming Solution Essay Crafting an essay on the subject of global warming solutions is undoubtedly a challenging endeavor. Tackling such a complex and pressing issue demands a comprehensive understanding of the scientific, economic, and political aspects surrounding climate change. The task involves delving into a vast pool of information, ranging from greenhouse gas emissions and ...
The earth's surface emits energy into the atmosphere in the form of heat, keeping the balance with the incoming energy. Global warming depletes the ozone layer, bringing about the end of the world. There is a clear indication that increased global warming will result in the extinction of all life on Earth's surface.
One global warming solution that was once considered far fetched is now being taken more seriously: geoengineering. This type of technology relies on manipulating the Earth's atmosphere to ...
100 Words Essay on Global Warming. An increase in the Earth's average global temperature is known as global warming. Global warming is mostly caused by burning more fossil fuels and the emission of hazardous pollutants into the atmosphere. Living things can suffer greatly as a result of global warming.
A rise in global temperatures can lead to additional changes in the environment, such as rising sea levels. Since an increase in the temperature causes the glaciers and icebergs to melt at a rapid pace, it causes the sea levels to rise. On the Weather: Global Warming causes intense heat waves by significantly increasing the temperature which ...
Here are 10 ways you can be part of the climate solution: 1. Spread the word. Encourage your friends, family and co-workers to reduce their carbon pollution. Join a global movement like Count Us In, which aims to inspire 1 billion people to take practical steps and challenge their leaders to act more boldly on climate.
global warming, Increase in the global average surface temperature resulting from enhancement of the greenhouse effect, primarily by air pollution.In 2007 the UN Intergovernmental Panel on Climate Change forecast that by 2100 global average surface temperatures would increase 3.2-7.2 °F (1.8-4.0 °C), depending on a range of scenarios for greenhouse gas emissions, and stated that it was ...
Introduction. Climate change is vastly affecting our world, with significant repercussions on human society. 1 With risks including storms, extreme heat, infrastructure damage, air pollution, disease vectors, human displacement, and social dynamics, climate change is affecting nearly all aspects of our lives and our health—with disparate effects across populations.
C ONCLUSION. This document explains that there are well-understood physical mechanisms by which changes in the amounts of greenhouse gases cause climate changes. It discusses the evidence that the concentrations of these gases in the atmosphere have increased and are still increasing rapidly, that climate change is occurring, and that most of ...