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Essay on Global Warming

• Updated on  
• Apr 27, 2024

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. 

Also Read: Essay on Disaster Management

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…

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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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How to Write an Essay About Global Warming

Last Updated: May 13, 2021

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 17 people, some anonymous, worked to edit and improve it over time. This article has been viewed 31,321 times.

If you've been assigned an essay about global warming, you'll be needing to focus on the burning issues this topic raises, as well as demonstrating various writing techniques. In the context of academic writing, your global warming essay may be written in three main composition genres: argumentative, problem solving and expository. This article will show you how to combine these essay types within one, allowing you to cover the topic at length.

Before you start writing…

• The greenhouse effect and global warming
• Global warming: real challenge or far-fetched issue?
• Global warming: mechanism of action
• Is it possible to reverse global warming?
• What caused global warming?
• And so forth.

• Stick to a certain number of reliable sources. Don’t confuse the essay with a research paper, where you would need to cite dozens of references. Writing a composition, limit yourself to five if possible, or a maximum of 10 sources.
• Narrow down the allowable sources. Many teachers view some websites with some skepticism and wouldn’t want you to cite them. Instead, you may be recommended to use printed sources. Ask if your teacher hasn't already made this clear.
• Choose reliable sources, scientific journals or government supported websites. For example: climate.nasa.gov, nrmsc.usgs.gov, epa.gov, etc.
• Write down facts, figures, statistics or other accurate data that will serve as strong arguments to support your statement.
• Consider the evidences that are at odds with the view you adhere to. For example, if you are aimed at expanding on the global warming problem, you can’t ignore information saying that our planet faces an opposed process – global cooling. Further, these arguments will come into play and help you reach the appropriate conclusion.
• Don’t forget to note the information needed for designing the bibliography. Doing so, bear in mind the required reference format (MLA, APA, Turabian, Chicago, etc.) assigned to you by your teacher.

• Write a mind map. Suppose you need to cover the topic “Effects of Global Warming”. Put the theme in the center and briefly list the most burning consequences.
• Proceeding from the scientific data you have collected, come up with your original ideas. For instance, if you dwell on the impact of global warming on ice caps, you may suggest a scenario provided that the ablation isn’t stopped.

• If you can incorporate all ideas within one extended sentence, you will get a powerful statement. For example: Global warming is just a fanciful problem invented to suppress substantial challenges that constitute a real threat for humanity.
• Irrespective of the way you formulate the topic, global warming is a pressing issue, and it shouldn’t leave the reader feeling indifferent. Thus, your thesis statement should provoke feedback and come across as challenging. For instance: Lifestyle change is the most considerable contribution to global warming problem treatment.

Implement your ideas in the text

• This may be a quote, such as: “We have passed the tipping points, but, we have not passed a point of no return. We can still roll things back in time, but it is going to require a quick turn in direction”, Dr. James Hansen - top climatologist of NASA. You may get a glimpse of the future and come up with a scene that depicts the potential dire consequences of global warming.
• Use the techniques applied in an expository essay to explain what global warming is about. Utilize figures and statistics that could not be bettered to speak about the seriousness of the problem.
• Be specific and don’t waffle, since the core of the matter you are to develop in the body of the essay.
• Write a thesis statement, which is the embodiment of the problem.

• Provide an explanation of the evidence you describe in the body of the text. If you are writing about factors that contribute to global warming, give specific scientific support. For example: Carbon dioxide emissions, coming from electricity production, top the list of causes for global warming. Just imagine, emissions have increased by 16 times since 1990 and have now reached a dangerous level.
• As far as global warming problem is the issue that touches all and sundry, you might have felt its impact in everyday life. Share your experience with the reader. It will definitely strengthen your arguments: Look out of the window! It is mid-January, but instead of snow banks, there is mud and drizzling rain. Isn’t it a vivid demonstration of global warming?
• Suggest solutions to the problem. People like happy endings, where the good always wins. Similarly, there are sure to be methods to reverse global warming. And they do exist. Provide the ways to handle the problem that, in the first place, are within power of every person. After all, to change the world, one should start with himself/herself.

• Go back to the thesis statement. It is known that repetition has a powerful effect, though, you shouldn’t reword thesis statement. Instead, paraphrase it, keeping its primary meaning intact. For instance, instead of saying "Lifestyle change is the most considerable contribution to global warming problem treatment", write "Having changed our social behavior and consumer attitude to nature, we can reverse global warming problem".

Summarizing the approach

• The Greenhouse effect as the main consequence of global warming
• Global warming: real challenge or far-fetched issue
• What caused global warming

• Limit number of sources
• Choose valid information
• Find and note accurate data connected with global warming issue
• Consider various approaches to global warming problem
• Adhere to particular reference format

• Make a list of global warming consequences, causes and solutions
• Generate own ideas, based on research findings

• Use one sentence to craft powerful thesis statement on global warming issue
• Make it challenging to provoke reader’s feedback

• Be specific and concise
• Utilize figures and statistics to demonstrate the seriousness of global warming problem
• Write thesis statement with the problem exposition in it

• Provide evidences of global warming and expand on them
• Suggest global warming examples from personal experience
• Suggest ways to handle the problem, with a special focus on the role of every person in prevention global warming

• Restate thesis statement for it to have a greater impact on readers
• Summarize main ideas in the last paragraph including call to action speech.

Community Q&A

• Outline all of the main ideas used in the body of the essay within one paragraph. Thanks Helpful 0 Not Helpful 0
• Make your last paragraph like a call to action: "We all have the grip of the situation! Let us be eco-friendly, not lazy–– walk a hundred meters to the store instead of taking your car, utilize alternative energy sources and buy energy-efficient appliances. Let's be conscientious and responsible for our deeds." Thanks Helpful 0 Not Helpful 0

You Might Also Like

• http://en.wikipedia.org/wiki/Global_warming – research source
• https://www.wikihow.com/Take-Action-to-Reduce-Global-Warming – research source
• http://www.123helpme.com/view.asp?id=64370 – research source

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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.

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.

Get English Important Questions here

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.

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.

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 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.

Read Global Warming Speech here

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.

हिंदी में ग्लोबल वार्मिंग पर निबंध यहाँ पढ़ें

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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Writing the best global warming essay – take an original approach.

October 8, 2019

Global warming is one of the most disastrous phenomenons in the history of the earth. Unlike several decades ago, the scientific evidence of global warming and associated impacts has become clearer. But even with the dangers such as the thawing of polar ice sheets and extensive droughts become the norm, it is sad that we have failed to come up with a cohesive strategy to counter it. Now, when you are required to write a global warming essay or related paper; how do you do it?

Craft The Right Structure For Your Essay On Global Warming

Even before starting to work on your global warming essay, it is prudent to create a good structure. The goal of the structure is ensuring you know what will come at what section and creating a smooth flow of ideas from the start to the end. Here is a sample structure of a great short essay on global warming for students.

Title : The title should be catchy and relevant to the topic.

Introduction : As the first part of your essay, you should use the introduction to prepare the reader about what is in the body. Also, make the introduction interesting so that the reader can have the interest to keep reading.

The body : This is another very important part of the essay where you get into the details of your subject. Every paragraph on global warming essays should explain a different point.

Conclusion : After bringing out your argument cohesively, the conclusion allows you to tie the points neatly. You should summarize the entire essay in a few sentences. Note that the conclusion should not introduce new points. However, you can call for further studies on the topic if you found it inadequately covered.

Research All Facts Before Writing Your Essay On Global Warming

Now that you have the best structure for the essay of global warming, it is time to get down into the details of your topic. Every global warming essay in English for students should be deeply researched to cover the following components:

Some history of global warming (when did it start). At what point was it discovered to be a threat to the planet?

What are the causes of global warming? Make sure to cite specifics such as individual sources of emissions.

Effects of global warming. Because these are many, it is important to focus on those that you have ample information on.

Carefully bring out the different interventions that have been instituted and point out their success or failure.

Special Tips For A Winning Global Warming Essay For Students

In addition to having the best structure, and comprehensive research on global warming, here are other useful tips to help you craft a good essay.

• Use images to demonstrate various aspects of the global warming phenomenon.
• Use the latest trends to make your essay more impressive.
• Consider using short sentences and paragraphs to make the essay easy to read and understand.
• Make sure to use the right citations. For example, capture the latest statistics and give the right references. This will make your work more authentic.
• Make the essay easy to read by using simple English and explaining every complex phrase. If there are initials, ensure to give their full meaning the first time they appear in the essay.
• Use samples of other global warming essays for students to learn how to craft winning papers.
• If your writing skills are poor or the deadline is tight, do not hesitate to seek writing help with your college essay. This will guarantee you top marks as you hone the necessary skills.

Essay Of Global Warming: Where Do You Place Environmental Activism

Another concept that features prominently in global warming essays is environmental activism. You can either include it as a separate paragraph in a short essay or a different subtopic for longer papers. One of the most outstanding activists in fighting global warming out there is Greta Thunberg. Here is some info about her:

Greta Thunberg is a Swedish environmental activist whose campaign on climate change has won her international recognition. At age 15, she started spending part of her school time outside the Swedish parliament with banners calling for stronger efforts to counter global warming. She called it “School Strike for Climate.” Soon, other students joined and held demonstrations from across the world, calling for firmer action on climate change. In 2018, she addressed the UN Climate Change Conference.

Identifying Essay Topics On Global Warming

If you are in a global warming class or a related subject, there are instances when your tutor might require you to pick your preferred topic to write on. In such a case, you should look for a subject that has ample information to write on. Though it is also okay to be exploratory by picking subjects that are relatively new, you are likely to get stuck along the way for a lack of information. Here are some great topics that you should consider for your global warming essay.

• The New Dynamics of Climate Change: What are the Factors making it Hard to Address the Global Phenomenon.
• How does Global Warming Impact Food Production?
• Climate Change: Why the Earth is Still at Risk even if Carbon Dioxide Emissions are Reduced.
• Demonstrating the Link between Greenhouse Effect and Global Warming.
• What Efforts Could Have been used to Prevent Global Warming 50 Years Ago?
• Demystifying Global Warming Denial and its Impact on Mitigation Effects?
• Red Alert: Why Global Warming could become Unstoppable even with the new interventions.
• Exploring the Shift in Earth Balance of the Polar Ice: A Closer Look at Antarctic Ice Sheet.
• Is there a Link between Climate Change and Sea-level Changes in Islands?
• Learning From the Past: Exploring the Lessons Drawn from the Kyoto Protocol on Carbon Dioxide.
• Evaluating the Relationship between Global Warming and Population Changes of Tropic Animals.
• Can the Fight against Global Warming be won?
• The Extended Impacts of Air Pollution: A Closer Look at the Health of Forests
• Taking Stock of Kyoto: Why Our Best is not enough to Halt Global Warming.
• Global Biodiversity Change: Exploring the Good, the Bad, and the Ugly of Climate Change.
• Assessing the Extinction of Debt of Mountain Plants under the Effect of Climate Change.
• Evaluating the Species that are Most Vulnerable from Global Warming.
• Assessing Greenhouse Gases Emissions Production in West China.
• What are the Most Effective Ways of Reducing Carbon Dioxide Emissions in the Transport Sector: A Closer Look at Copenhagen.
• Polar Volcanoes: Evaluating the Impact of their Degradation Because of Global Warming.
• Global Warming and its Impact on Migration Paths.
• Impacts of Pesticides on Water Safety: Exploring its Link to Air and Water Pollution.
• International Treaties: Evaluating their Efficiency in Addressing Global Warming.
• Demonstrating how Politics Can Affect Global Warming.
• A Closer Look at the Link between Global Warming and Development of the Chemical Industry.
• Assessing the Carbon Footprint of Global Tourism: A Closer Look at Sweden
• Demystifying The Main Processes used by Greenhouse Gases to Take Heat and Radiate it back.
• Evaluating the Efficiency of Strategies used to Reduce Greenhouse Gas Concentration in the Atmosphere.
• Assessing the Impacts of Climate Extremes: A Case Study of Egypt 1990-2019.
• What are the Impacts of Climate Change on Coral Reefs? A Closer Look at the Great Barrier Reef.
• Exploring the Impacts of Global Warming on Business in London.
• Distributed Burden of Climate Change: Influence of Ethics, Science, and Development.
• Evaluating the Impacts of Climate Change on Tourism: A Case Study of France.
• Impact of Climate Change on Portable Water: A Case Study of India.
• Differentiating between Anthropogenic and Natural Climatic Changes.
• A Theoretical View: Why are Some Countries Ignoring the Global Warming phenomena?
• Disappearing Forests: Exploring the Best Strategies for Saving them.
• Economic Development vs Environment: The Politics of Air Pollution, Health and Wealth.
• Is this the Best Solution to Global Warming: A Closer Look at the Hybrid Approach to Addressing the Problem of Deforestation.
• Evaluating the Impact of Food Waste on Climate Change.
• Global Warming in Numbers: Demystifying the Earth Surface Heating Rates in the Last 100 years.
• Using Technology to Fix the Problem of Global Warming
• Linking Security issues and Global Warming.
• Why are the impacts of Global Warming Felt more in Some Countries than Others?
• Estimating greenhouse gas Emissions from India’s Domestic Water Sector.
• Challenges of Addressing Greenhouse Gas Emissions from Municipal Solid Waste Management Facilities in India.
• Assessing the Place of Environmental Activism in Countering the Problem of Global Warming.
• Is Global Warming a Natural Cycle?
• On the Trails of Global Warming: Does the World have a Future?
• Global Warming: Are Human Beings the Biggest Enemies to the Planet?

The Final Take On Writing Global Warming Essays

If you are new to college, tasks such as global warming essay assignments will be very common. This post has demonstrated how to plan for such essays and get the highest marks. Do not let college essays cause stress to you; use the tips provided in this post to write like a pro.

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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.

Political philosophy

C L R James and America

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Progress and modernity

The great wealth wave

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Neuroscience

The melting brain

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Falling for suburbia

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Computing and artificial intelligence

Mere imitation

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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

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4 guidelines for writing about climate change

The climate story has moved beyond science and is increasingly local . It touches communities and coverage in new ways every day. As you cover the topic in your area, here are some guidelines for your reporting.

Do not conflate science and policy. They are separate things. Science informs policymaking but it does not dictate what policies should be chosen. Different people may reach different conclusions, depending on what they value.

Be specific about which climate change “debate” you are covering. There is no single debate; there are separate debates within science, within policy and within economics, and debates about how scientific findings should guide policy.

Be clear about the science. The overarching issue is as settled as things get in science: The planet is warming and humans are largely responsible. As a result, glaciers and ice sheets are melting. New, contradictory evidence could come along–science is always subject to revision. But the idea that humans are causing climate change is not scientifically controversial.

Avoid “global warming: yes or no?” coverage. Although there are still many scientific questions to be answered, the climate change story has shifted to policy. What should we do, if anything, about climate change? Just as governments routinely make decisions about fiscal policy under great uncertainty, environmental policy can proceed even though scientific uncertainties remain.

Taken from Covering Climate Change , a self-directed course by Tom Yulsman at Poynter NewsU .

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• Essay on Global Warming

Essay On Global Warming

Essay on global warming is an important topic for students to understand. The essay brings to light the plight of the environment and the repercussion of anthropogenic activities. Continue reading to discover tips and tricks for writing an engaging and interesting essay on global warming.

Essay On Global Warming in 300 Words

Global warming is a phenomenon where the earth’s average temperature rises due to increased amounts of greenhouse gases. Greenhouse gases such as carbon dioxide, methane and ozone trap the incoming radiation from the sun. This effect creates a natural “blanket”, which prevents the heat from escaping back into the atmosphere. This effect is called the greenhouse effect.

Contrary to popular belief, greenhouse gases are not inherently bad. In fact, the greenhouse effect is quite important for life on earth. Without this effect, the sun’s radiation would be reflected back into the atmosphere, freezing the surface and making life impossible. However, when greenhouse gases in excess amounts get trapped, serious repercussions begin to appear. The polar ice caps begin to melt, leading to a rise in sea levels. Furthermore, the greenhouse effect is accelerated when polar ice caps and sea ice melts. This is due to the fact the ice reflects 50% to 70% of the sun’s rays back into space, but without ice, the solar radiation gets absorbed. Seawater reflects only 6% of the sun’s radiation back into space. What’s more frightening is the fact that the poles contain large amounts of carbon dioxide trapped within the ice. If this ice melts, it will significantly contribute to global warming. 

A related scenario when this phenomenon goes out of control is the runaway-greenhouse effect. This scenario is essentially similar to an apocalypse, but it is all too real. Though this has never happened in the earth’s entire history, it is speculated to have occurred on Venus. Millions of years ago, Venus was thought to have an atmosphere similar to that of the earth. But due to the runaway greenhouse effect, surface temperatures around the planet began rising. 

If this occurs on the earth, the runaway greenhouse effect will lead to many unpleasant scenarios – temperatures will rise hot enough for oceans to evaporate. Once the oceans evaporate, the rocks will start to sublimate under heat. In order to prevent such a scenario, proper measures have to be taken to stop climate change.

More to Read: Learn How Greenhouse Effect works

Tips To Writing the Perfect Essay

Consider adopting the following strategies when writing an essay. These are proven methods of securing more marks in an exam or assignment.

• Begin the essay with an introductory paragraph detailing the history or origin of the given topic.
• Try to reduce the use of jargons. Use sparingly if the topic requires it.
• Ensure that the content is presented in bulleted points wherever appropriate.
• Insert and highlight factual data, such as dates, names and places.
• Remember to break up the content into smaller paragraphs. 100-120 words per paragraph should suffice.
• Always conclude the essay with a closing paragraph.

Explore more essays on biology or other related fields at BYJU’S.

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Steps To Follow While Writing An Essay On Climate Change

Table of Contents

Climate change is the most essential issue of our generation; we are the first to witness its early signs and the last who have a chance of stopping them from happening.

Living in a bubble of denial can only get us this far; the planet which is our home is already a scene for melting glaciers, raising floods, extinction of species… the list goes on and on. Spreading awareness on matters of climate change through any means available, including as seemingly trivial form as writing a school essay, cannot be underestimated.

Follow the guidelines suggested in the paragraphs below to learn how to create a perfect essay that will get you an appraisal of your teacher.

Essay on climate changes: how to write?

If you really want to make your teacher gasp while they are reading your work, there are three vital things to pay attention to .

First of all, read the topic carefully and understand it’s specific, i.e., what is expected from you.

For instance, if it is the role of individuals in helping prevent climate change, you should not focus so much on the global problems, but speak about how small changes all of us can introduce in our routines will eventually have a positive environmental effect.

Secondly, determine your personal take on the problem . Search for materials on your subject using keywords, and pile up the evidence that supports your point of view.

Finally, write a conclusion. Make sure that the conclusion you make reflects the viewpoints you have been expressing all throughout your essay.

Below you will find a more detailed breakdown of tasks you will have to accomplish to complete writing an essay on climate changes that is worthy of a top mark.

Check if it is an argumentative essay on climate change or more of a speculative one? Arrange your writing accordingly.

• Craft the outline and don’t go off-topic.
• Search for keywords .
• Make a plan .
• Avoid the most common mistakes from the start.
• Write an introduction thinking about what you will write later.
• Develop your ideas according to the outline .
• Make a conclusion which is consistent with what you’ve written in the main paragraphs.
• Proofread the draft , correct mistakes and print out the hard copy. All set!

One of the most focal of your writing will be factual evidence. When writing on climate change, resort to providing data shared by international organizations like IPCC , WWF , or World Bank .

It is undeniable that among the main causes of climate change, unfortunately, there are oil and fossil fuels that are the basis of the whole economy and still invaluable sources of energy.

Although everyone knows that oil resources are polluting and that it would be much more useful and environmentally sustainable to rely on renewable energies such as wind and solar energies and electricity, the power of the world seem not to notice or pretend not to see for don’t go against your own interests.

The time has come to react and raise awareness of the use of renewable energy sources.

In addition to the causes already mentioned, we must consider the increase in the carbon dioxide air that traps heat in our atmosphere, thus increasing the temperatures with the consequent of the Arctic glaciers melting.

WWF reported that in 2016, the recorded data was quite worrying with a constant increase in temperatures and a 40% decrease in Arctic marine glaciers.

Topics for essay on global warming and climate change

If you do not have any specific topic to write on, consider yourself lucky. You can pick one that you are passionate about – and in fact, this is what you should do! If we think back to the very definition of essay, it is nothing more than a few paragraphs of expressing one’s personal attitude and viewpoints on a certain subject. Surely, you need to pick a subject that you are opinionated about to deliver a readable piece of writing!

Another point to consider is quaintness and topicality factors. You don’t want to end up writing on a subject that the rest of your class will, and in all honesty, that has zero novelty to it.

Even if it is something as trivial as the greenhouse effect, add an unexpected perspective to it: the greenhouse effect from the standpoint of the feline population of Montenegro. Sounds lunatic, but you get the drift.

Do not worry, below you will find the list of legitimately coverable topics to choose from:

• The last generation able to fight the global crisis.
• Climate change: top 10 unexpected causes.
• Climate changes. Things anyone can do.
• Climate changes concern everyone. Is it true?
• The Mauna Loa volcano: climate change is here.
• Water pollution and coastal cities: what needs to be done?
• Is there global warming if it’s still cold?
• The CO2 concentration in the atmosphere.
• Celebrity activists and climate changes.
• Individual responsibility for the environment.
• How the loss of biodiversity is the biggest loss for humanity.
• Ways to fight global warming at home.
• Sustainable living as a way of fighting climate change.
• Climate change fighting countries to look up to.
• Industrial responsibility and climate change.
• What future will be like if we fail to make an environmental stand?
• Discovering water on Mars: a new planet to live on?
• Climate change effects on poor countries.
• Nuclear power laws and climate change.
• Is it true that climate change is caused by man?

Mistakes to avoid when writing an essay on climate change

When composing your essay, you must avoid the following (quite common!) mistakes:

• Clichés – no one wants to read universal truths presented as relevant discoveries.
• Repeating an idea already expressed – don’t waste your readers’ time .
• Making an accumulation of ideas that are not connected and that do not follow one another; structure your ideas logically .
• Being contradictive (check consistency).
• Using bad or tired collocations .
• Using lackluster adjectives like “good”/”bad”. Instead, think of more eye-catching synonyms.

Structure your essay in a logical way : introduce your thesis, develop your ideas in at least 2 parts that contain several paragraphs, and draw a conclusion.

Bottom line

Writing an essay on global warming and climate change is essentially reflecting on the inevitable consequence of the irresponsible behavior of people inhabiting the planet. Outside of big-scale thinking, there is something each of us can do, and by shaping minds the right way, essential change can be done daily.

Each of us can act to protect the environment, reducing the use of plastic, recycling, buying food with as little packaging as possible, or turning off water and light when not in use. Every little help, even a short essay on climate change can help make a difference.

Can’t wait to save the planet? Do it, while we write your essay. Easy order, complete confidentiality, timely delivery. Click the button to learn more!

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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

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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Home / For Educators: Grades 6-12 / Climate Explained: Introductory Essays About Climate Change Topics

Climate Explained: Introductory Essays About Climate Change Topics

Filed under: backgrounders for educators ,.

Climate Explained, a part of Yale Climate Connections, is an essay collection that addresses an array of climate change questions and topics, including why it’s cold outside if global warming is real, how we know that humans are responsible for global warming, and the relationship between climate change and national security.

More Activities like this

Climate Change Basics: Five Facts, Ten Words

Backgrounders for Educators

To simplify the scientific complexity of climate change, we focus on communicating five key facts about climate change that everyone should know. 

Why should we care about climate change?

Having different perspectives about global warming is natural, but the most important thing that anyone should know about climate change is why it matters.  

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Looking for resources to help you and your students build a solid climate change science foundation? We’ve compiled a list of reputable, student-friendly links to help you do just that!  

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Responding to the Climate Threat: Essays on Humanity’s Greatest Challenge

A new book co-authored by MIT Joint Program Founding Co-Director Emeritus Henry Jacoby

From the Back Cover

This book demonstrates how robust and evolving science can be relevant to public discourse about climate policy. Fighting climate change is the ultimate societal challenge, and the difficulty is not just in the wrenching adjustments required to cut greenhouse emissions and to respond to change already under way. A second and equally important difficulty is ensuring widespread public understanding of the natural and social science. This understanding is essential for an effective risk management strategy at a planetary scale. The scientific, economic, and policy aspects of climate change are already a challenge to communicate, without factoring in the distractions and deflections from organized programs of misinformation and denial. 

Here, four scholars, each with decades of research on the climate threat, take on the task of explaining our current understanding of the climate threat and what can be done about it, in lay language―importantly, without losing critical  aspects of the natural and social science. In a series of essays, published during the 2020 presidential election, the COVID pandemic, and through the fall of 2021, they explain the essential components of the challenge, countering the forces of distrust of the science and opposition to a vigorous national response.  

Each of the essays provides an opportunity to learn about a particular aspect of climate science and policy within the complex context of current events. The overall volume is more than the sum of its individual articles. Proceeding each essay is an explanation of the context in which it was written, followed by observation of what has happened since its first publication. In addition to its discussion of topical issues in modern climate science, the book also explores science communication to a broad audience. Its authors are not only scientists – they are also teachers, using current events to teach when people are listening. For preserving Earth’s planetary life support system, science and teaching are essential. Advancing both is an unending task.

About the Authors

Gary Yohe is the Huffington Foundation Professor of Economics and Environmental Studies, Emeritus, at Wesleyan University in Connecticut. He served as convening lead author for multiple chapters and the Synthesis Report for the IPCC from 1990 through 2014 and was vice-chair of the Third U.S. National Climate Assessment.

Henry Jacoby is the William F. Pounds Professor of Management, Emeritus, in the MIT Sloan School of Management and former co-director of the MIT Joint Program on the Science and Policy of Global Change, which is focused on the integration of the natural and social sciences and policy analysis in application to the threat of global climate change.

Richard Richels directed climate change research at the Electric Power Research Institute (EPRI). He served as lead author for multiple chapters of the IPCC in the areas of mitigation, impacts and adaptation from 1992 through 2014. He also served on the National Assessment Synthesis Team for the first U.S. National Climate Assessment.

Ben Santer is a climate scientist and John D. and Catherine T. MacArthur Fellow. He contributed to all six IPCC reports. He was the lead author of Chapter 8 of the 1995 IPCC report which concluded that “the balance of evidence suggests a discernible human influence on global climate”. He is currently a Visiting Researcher at UCLA’s Joint Institute for Regional Earth System Science & Engineering.

Access the Book

View the book on the publisher's website  here .

Order the book from Amazon  here . 

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Our Future Is Now - A Climate Change Essay by Francesca Minicozzi, '21

Francesca Minicozzi (class of 2021) is a Writing/Biology major who plans to study medicine after graduation. She wrote this essay on climate change for WR 355/Travel Writing, which she took while studying abroad in Newcastle in spring 2020. Although the coronavirus pandemic curtailed Francesca’s time abroad, her months in Newcastle prompted her to learn more about climate change. Terre Ryan Associate Professor, Writing Department

Our Future Is Now

By Francesca Minicozzi, '21 Writing and Biology Major

 “If you don’t mind me asking, how is the United States preparing for climate change?” my flat mate, Zac, asked me back in March, when we were both still in Newcastle. He and I were accustomed to asking each other about the differences between our home countries; he came from Cambridge, while I originated in Long Island, New York. This was one of our numerous conversations about issues that impact our generation, which we usually discussed while cooking dinner in our communal kitchen. In the moment of our conversation, I did not have as strong an answer for him as I would have liked. Instead, I informed him of the few changes I had witnessed within my home state of New York.

Zac’s response was consistent with his normal, diplomatic self. “I have been following the BBC news in terms of the climate crisis for the past few years. The U.K. has been working hard to transition to renewable energy sources. Similar to the United States, here in the United Kingdom we have converted over to solar panels too. My home does not have solar panels, but a lot of our neighbors have switched to solar energy in the past few years.”

“Our two countries are similar, yet so different,” I thought. Our conversation continued as we prepared our meals, with topics ranging from climate change to the upcoming presidential election to Britain’s exit from the European Union. However, I could not shake the fact that I knew so little about a topic so crucial to my generation.

After I abruptly returned home from the United Kingdom because of the global pandemic, my conversation with my flat mate lingered in my mind. Before the coronavirus surpassed climate change headlines, I had seen the number of internet postings regarding protests to protect the planet dramatically increase. Yet the idea of our planet becoming barren and unlivable in a not-so-distant future had previously upset me to the point where a part of me refused to deal with it. After I returned from studying abroad, I decided to educate myself on the climate crisis.

My quest for climate change knowledge required a thorough understanding of the difference between “climate change” and “global warming.” Climate change is defined as “a pattern of change affecting global or regional climate,” based on “average temperature and rainfall measurements” as well as the frequency of extreme weather events. 1   These varied temperature and weather events link back to both natural incidents and human activity. 2   Likewise, the term global warming was coined “to describe climate change caused by humans.” 3   Not only that, but global warming is most recently attributed to an increase in “global average temperature,” mainly due to greenhouse gas emissions produced by humans. 4

I next questioned why the term “climate change” seemed to take over the term “global warming” in the United States. According to Frank Luntz, a leading Republican consultant, the term “global warming” functions as a rather intimidating phrase. During George W. Bush’s first presidential term, Luntz argued in favor of using the less daunting phrase “climate change” in an attempt to overcome the environmental battle amongst Democrats and Republicans. 5   Since President Bush’s term, Luntz remains just one political consultant out of many politicians who has recognized the need to address climate change. In an article from 2019, Luntz proclaimed that political parties aside, the climate crisis affects everyone. Luntz argued that politicians should steer clear of trying to communicate “the complicated science of climate change,” and instead engage voters by explaining how climate change personally impacts citizens with natural disasters such as hurricanes, tornadoes, and forest fires. 6   He even suggested that a shift away from words like “sustainability” would gear Americans towards what they really want: a “cleaner, safer, healthier” environment. 7

The idea of a cleaner and heathier environment remains easier said than done. The Paris Climate Agreement, introduced in 2015, began the United Nations’ “effort to combat global climate change.” 8   This agreement marked a global initiative to “limit global temperature increase in this century to 2 degrees Celsius above preindustrial levels,” while simultaneously “pursuing means to limit the increase to 1.5 degrees.” 9    Every country on earth has joined together in this agreement for the common purpose of saving our planet. 10   So, what could go wrong here? As much as this sounds like a compelling step in the right direction for climate change, President Donald Trump thought otherwise. In June 2017, President Trump announced the withdrawal of the United States from the Paris Agreement with his proclamation of climate change as a “’hoax’ perpetrated by China.” 11   President Trump continued to question the scientific facts behind climate change, remaining an advocate for the expansion of domestic fossil fuel production. 12   He reversed environmental policies implemented by former President Barack Obama to reduce fossil fuel use. 13

Trump’s actions against the Paris Agreement, however, fail to represent the beliefs of Americans as a whole. The majority of American citizens feel passionate about the fight against climate change. To demonstrate their support, some have gone as far as creating initiatives including America’s Pledge and We Are Still In. 14   Although the United States officially exited the Paris Agreement on November 4, 2020, this withdrawal may not survive permanently. 15   According to experts, our new president “could rejoin in as short as a month’s time.” 16   This offers a glimmer of hope.

The Paris Agreement declares that the United States will reduce greenhouse gas emission levels by 26 to 28 percent by the year 2025. 17   As a leader in greenhouse gas emissions, the United States needs to accept the climate crisis for the serious challenge that it presents and work together with other nations. The concept of working coherently with all nations remains rather tricky; however, I remain optimistic. I think we can learn from how other countries have adapted to the increased heating of our planet. During my recent study abroad experience in the United Kingdom, I was struck by Great Britain’s commitment to combating climate change.

Since the United Kingdom joined the Paris Agreement, the country targets a “net-zero” greenhouse gas emission for 2050. 18   This substantial alteration would mark an 80% reduction of greenhouse gases from 1990, if “clear, stable, and well-designed policies are implemented without interruption.” 19   In order to stay on top of reducing emissions, the United Kingdom tracks electricity and car emissions, “size of onshore and offshore wind farms,” amount of homes and “walls insulated, and boilers upgraded,” as well as the development of government policies, including grants for electric vehicles. 20   A strong grip on this data allows the United Kingdom to target necessary modifications that keep the country on track for 2050. In my brief semester in Newcastle, I took note of these significant changes. The city of Newcastle is small enough that many students and faculty are able to walk or bike to campus and nearby essential shops. However, when driving is unavoidable, the majority of the vehicles used are electric, and many British citizens place a strong emphasis on carpooling to further reduce emissions. The United Kingdom’s determination to severely reduce greenhouse emissions is ambitious and particularly admirable, especially as the United States struggles to shy away from its dependence on fossil fuels.

So how can we, as Americans, stand together to combat global climate change? Here are five adjustments Americans can make to their homes and daily routines that can dramatically make a difference:

• Stay cautious of food waste. Studies demonstrate that “Americans throw away up to 40 percent of the food they buy.” 21   By being more mindful of the foods we purchase, opting for leftovers, composting wastes, and donating surplus food to those in need, we can make an individual difference that impacts the greater good. 22   
• Insulate your home. Insulation functions as a “cost-effective and accessible” method to combat climate change. 23   Homes with modern insulation reduce energy required to heat them, leading to a reduction of emissions and an overall savings; in comparison, older homes can “lose up to 35 percent of heat through their walls.” 24   
• Switch to LED Lighting. LED stands for “light-emitting diodes,” which use “90 percent less energy than incandescent bulbs and half as much as compact fluorescents.” 25   LED lights create light without producing heat, and therefore do not waste energy. Additionally, these lights have a longer duration than other bulbs, which means they offer a continuing savings. 26  
• Choose transportation wisely. Choose to walk or bike whenever the option presents itself. If walking or biking is not an option, use an electric or hybrid vehicle which emits less harmful gases. Furthermore, reduce the number of car trips taken, and carpool with others when applicable. 
• Finally, make your voice heard. The future of our planet remains in our hands, so we might as well use our voices to our advantage. Social media serves as a great platform for this. Moreover, using social media to share helpful hints to combat climate change within your community or to promote an upcoming protest proves beneficial in the long run. If we collectively put our voices to good use, together we can advocate for change.

As many of us are stuck at home due to the COVID-19 pandemic, these suggestions are slightly easier to put into place. With numerous “stay-at-home” orders in effect, Americans have the opportunity to make significant achievements for climate change. Personally, I have taken more precautions towards the amount of food consumed within my household during this pandemic. I have been more aware of food waste, opting for leftovers when too much food remains. Additionally, I have realized how powerful my voice is as a young college student. Now is the opportunity for Americans to share how they feel about climate change. During this unprecedented time, our voice is needed now more than ever in order to make a difference.

However, on a much larger scale, the coronavirus outbreak has shed light on reducing global energy consumption. Reductions in travel, both on the roads and in the air, have triggered a drop in emission rates. In fact, the International Energy Agency predicts a 6 percent decrease in energy consumption around the globe for this year alone. 27   This drop is “equivalent to losing the entire energy demand of India.” 28   Complete lockdowns have lowered the global demand for electricity and slashed CO2 emissions. However, in New York City, the shutdown has only decreased carbon dioxide emissions by 10 percent. 29   This proves that a shift in personal behavior is simply not enough to “fix the carbon emission problem.” 30   Climate policies aimed to reduce fossil fuel production and promote clean technology will be crucial steppingstones to ameliorating climate change effects. Our current reduction of greenhouse gas emissions serves as “the sort of reduction we need every year until net-zero emissions are reached around 2050.” 31   From the start of the coronavirus pandemic, politicians came together for the common good of protecting humanity; this demonstrates that when necessary, global leaders are capable of putting humankind above the economy. 32

After researching statistics comparing the coronavirus to climate change, I thought back to the moment the virus reached pandemic status. I knew that a greater reason underlay all of this global turmoil. Our globe is in dire need of help, and the coronavirus reminds the world of what it means to work together. This pandemic marks a turning point in global efforts to slow down climate change. The methods we enact towards not only stopping the spread of the virus, but slowing down climate change, will ultimately depict how humanity will arise once this pandemic is suppressed. The future of our home planet lies in how we treat it right now. 

• “Climate Change: What Do All the Terms Mean?,” BBC News (BBC, May 1, 2019), https://www.bbc.com/news/science-environment-48057733 )
• Ibid. 
• Kate Yoder, “Frank Luntz, the GOP's Message Master, Calls for Climate Action,” Grist (Grist, July 26, 2019), https://grist.org/article/the-gops-most-famous-messaging-strategist-calls-for-climate-action
• Melissa Denchak, “Paris Climate Agreement: Everything You Need to Know,” NRDC, April 29, 2020, https://www.nrdc.org/stories/paris-climate-agreement-everything-you-need-know)
• “Donald J. Trump's Foreign Policy Positions,” Council on Foreign Relations (Council on Foreign Relations), accessed May 7, 2020, https://www.cfr.org/election2020/candidate-tracker/donald-j.-trump?gclid=CjwKCAjw4871BRAjEiwAbxXi21cneTRft_doA5if60euC6QCL7sr-Jwwv76IkgWaUTuyJNx9EzZzRBoCdjsQAvD_BwE#climate and energy )
• David Doniger, “Paris Climate Agreement Explained: Does Congress Need to Sign Off?,” NRDC, December 15, 2016, https://www.nrdc.org/experts/david-doniger/paris-climate-agreement-explained-does-congress-need-sign )
• “How the UK Is Progressing,” Committee on Climate Change, March 9, 2020, https://www.theccc.org.uk/what-is-climate-change/reducing-carbon-emissions/how-the-uk-is-progressing/)
• Ibid.  
• “Top 10 Ways You Can Fight Climate Change,” Green America, accessed May 7, 2020, https://www.greenamerica.org/your-green-life/10-ways-you-can-fight-climate-change )
• Matt McGrath, “Climate Change and Coronavirus: Five Charts about the Biggest Carbon Crash,” BBC News (BBC, May 5, 2020), https://www.bbc.com/news/amp/science-environment-52485712 )

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.

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.

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.

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10 (page 173) p. 173 Conclusion

• Published: November 2008
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The ‘Conclusion’ confirms that global warming is the major challenge for our global society. There is very little doubt that global warming will change our climate in the next century. So what are the solutions to global warming? First, there must be an international political solution. Second, funding for developing cheap and clean energy production must be increased, as all economic development is based on increasing energy usage. We must not pin all our hopes on global politics and clean energy technology, so we must prepare for the worst and adapt. If implemented now, a lot of the costs and damage that could be caused by changing climate can be mitigated.

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global warming summary

Learn about the causes and effects of global warming.

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.

Goal 13: Take urgent action to combat climate change and its impacts

Every person, in every country in every continent will be impacted in some shape or form by climate change. There is a climate cataclysm looming, and we are underprepared for what this could mean.

Climate change is caused by human activities and threatens life on earth as we know it. With rising greenhouse gas emissions, climate change is occurring at rates much faster than anticipated. Its impacts can be devastating and include extreme and changing weather patterns and rising sea levels.

If left unchecked, climate change will undo a lot of the development progress made over the past years. It will also provoke mass migrations that will lead to instability and wars.

To limit global warming to 1.5°C above pre- industrial levels, emissions must already be decreasing and need to be cut by almost half by 2030, just seven years away. But, we are drastically off track from this target.

Urgent and transformative going beyond mere plans and promises are crucial. It requires raising ambition, covering entire economies and moving towards climate-resilient development, while outlining a clear path to achieve net-zero emissions. Immediate measures are necessary to avoid catastrophic consequences and secure a sustainable future for generations to come.

The climate crisis continues unabated as the global community shies away from the full commitment required for its reversal. 2010 – 2019 was the warmest decade ever recorded, bringing with it massive wildfires, hurricanes, droughts, floods and other climate disasters across continents.

Climate change is disrupting national economies and affecting lives and livelihoods, especially for the most vulnerable.

Between 2010 and 2020, highly vulnerable regions, home to approximately 3.3–3.6 billion people, experienced 15 x higher human mortality rates from floods, droughts and storms compared to regions with very low vulnerability.

What happens if you don’t take action?

If left unchecked, climate change will cause average global temperatures to increase beyond 3°C, and will adversely affect every ecosystem. Already, we are seeing how climate change can exacerbate storms and disasters, and threats such as food and water scarcity, which can lead to conflict. Doing nothing will end up costing us a lot more than if we take action now.

Solving the problem

To address climate change, we have to vastly raise our ambition at all levels. Much is happening around the world – investments in renewable energy have soared. But more needs to be done. The world must transform its energy, industry, transport, food, agriculture and forestry systems to ensure that we can limit global temperature rise to well below 2°C, maybe even 1.5°C. In December 2015, the world took a significant first step by adopting the Paris Agreement, in which all countries committed to take action to address climate change. However, more actions are critically needed in order to meet the targets.

Businesses and investors need to ensure emissions are lowered, not just because it is the right thing to do, but because it makes economic and business sense as well.

Are we investing enough to combat climate change?

According to the UNFCCC, global climate finance flows reached an annual average of $803 billion in 2019–2020, a 12 per cent increase compared to prior years. However, this still falls short of the levels needed to limit warming, and fossil-fuel-related flows exceeded climate financing for adaptation and mitigation in 2020.

In 2019, at least 120 of the 153 developing countries had undertaken activities to formulate and implement National Adaptation Plans to enhance climate adaptation and resilience, an increase of 29 countries over the previous year. Furthermore, progress in meeting the 2020 disaster risk reduction target has been slow.

What can I do to help?

There are many things that each of us can do as individuals. To find out what you can do, go to: www.un.org/en/actnow

To read more about the UN’s efforts on climate change: un.org/climatechange

Facts and figures

Goal 13 targets.

• With a climate cataclysm looming, the pace and scale of current climate action plans are wholly insufficient to effectively tackle climate change. Increasingly frequent and intense extreme weather events are already impacting every region on Earth. Rising temperatures will escalate these hazards further, posing grave risks.
• The Intergovernmental Panel on Climate Change (IPCC) emphasizes that deep, rapid and sustained reductions in greenhouse gas (GHG) emissions are essential in all sectors, beginning now and continuing throughout this decade. To limit global warming to 1.5°C above pre- industrial levels, emissions must already be decreasing and need to be cut by almost half by 2030, just seven years away.
• Urgent and transformative action is crucial, going beyond mere plans and promises. It requires raising ambition, covering entire economies and moving towards climate-resilient development, while outlining a clear path to achieve net-zero emissions. Time is running out, and immediate measures are necessary to avoid catastrophic consequences and secure a sustainable future for generations to come.

Source: The Sustainable Development Goals Report 2023

13.1  Strengthen resilience and adaptive capacity to climate-related hazards and natural disasters in all countries

13.2  Integrate climate change measures into national policies, strategies and planning

13.3  Improve education, awareness-raising and human and institutional capacity on climate change mitigation, adaptation, impact reduction and early warning

13.A  Implement the commitment undertaken by developed-country parties to the United Nations Framework Convention on Climate Change to a goal of mobilizing jointly $100 billion annually by 2020 from all sources to address the needs of developing countries in the context of meaningful mitigation actions and transparency on implementation and fully operationalize the Green Climate Fund through its capitalization as soon as possible

13.B  Promote mechanisms for raising capacity for effective climate change-related planning and management in least developed countries and small island developing States, including focusing on women, youth and local and marginalized communities

*Acknowledging that the United Nations Framework Convention on Climate Change is the primary international, intergovernmental forum for negotiating the global response to climate change.

UN and climate change site

UN Framework on the Convention on Climate Change

World Meteorological Organization

UN Population Fund

UN Environment – Climate Change

Intergovernmental panel on Climate Change

FAO – Climate

Fast Facts: Climate Action

Infographic: Climate Action

Climate Action Summit 2019

With global emissions are reaching record levels and showing no sign of peaking, UN Secretary-General António Guterres called on all leaders to come to New York on 23 September 2019 for the Climate Action Summit with concrete, realistic plans to enhance their nationally determined contributions by 2020, in line with reducing greenhouse gas emissions by 45 per cent over the next decade, and to net zero emissions by 2050.

Read the Report of the Secretary-General on the outcomes of the Summit.

IPCC Climate Report 2022

The Working Group III report provides an updated global assessment of climate change mitigation progress and pledges, and examines the sources of global emissions. It explains developments in emission reduction and mitigation efforts, assessing the impact of national climate pledges in relation to long-term emissions goals.

Read more here

The Paris Agreement on climate change

The UN continues to encourage all stakeholders to take action toward reducing the impacts of climate change.

COP27: Egypt, 2022

From 6 to 18 November, Heads of State, ministers and negotiators, along with climate activists, mayors, civil society representatives and CEOs will meet in the Egyptian coastal city of Sharm el-Sheikh for the largest annual gathering on climate action.

The 27th Conference of the Parties to the United Nations Framework Convention on Climate Change –  COP27  – will build on the outcomes of  COP26  to deliver action on an array of issues critical to tackling the climate emergency – from urgently reducing greenhouse gas emissions, building resilience and adapting to the inevitable impacts of climate change, to delivering on the commitments to finance climate action in developing countries.

COP26: Glasgow, 2021

The UN Climate Change Conference in Glasgow (COP26) brought together 120 world leaders and over 40,000 registered participants, including 22,274 party delegates, 14.124 observers and 3.886 media representatives. For two weeks, the world was riveted on all facets of climate change — the science, the solutions, the political will to act, and clear indications of action.

The outcome of COP26 – the  Glasgow Climate Pact  – is the fruit of intense negotiations among almost 200 countries over the two weeks, strenuous formal and informal work over many months, and constant engagement both in-person and virtually for nearly two years.

COP25: Madrid, 2019

The Madrid Climate Change Conference – COP25 – brought the world together to consider ways to strengthen the implementation of the Paris Agreement. Taking place from 2 to 16 December in Madrid, the Conference came at a time when new data shows the climate emergency is getting worse every day, and is impacting people’s lives everywhere, whether from extreme heat, air pollution, wildfires, intensified flooding or droughts. Read our blogs from the Conference here .

COP24: Katowice, 2018

At the end of COP24, countries stressed “the urgency of enhanced ambition in order to ensure the highest possible mitigation and adaptation efforts by all Parties,” and agreed on a set of guidelines for implementing the landmark 2015 Paris Climate Change Agreement.

COP23: Bonn, 2017

The 2017 UN Climate Conference took place in Bonn, Germany, from 6-18 November. Leaders of national governments, cities, states, business, investors, NGOs and civil society gathered to speed up climate action to meet the goals of the Paris Climate Change Agreement.

COP22: Marrakesh, 2016

High-Level Event Towards Entry into Force: 21 September, 2016

Recap of the High-Level Event Towards Entry into Force

Paris Agreement Signing Ceremony, 22 April 2016

To keep the global spotlight focused on climate change and build on the strong political momentum from Paris, United Nations Secretary-General Ban Ki-moon invited representatives of all countries to sign  the Paris Agreement on climate change   at a special Ceremony at the United Nations Headquarters on 22 April.

COP21, 12 December 2015

The Paris Agreement was adopted by all 196 Parties to the  United Nations Framework Convention on Climate Change  at  COP21 in Paris  on 12 December 2015. In the agreement, all countries agreed to work to limit global temperature rise to well below 2 degrees Celsius, and given the grave risks, to strive for 1.5 degrees Celsius. Implementation of the Paris Agreement is essential for the achievement of the  Sustainable Development Goals , and provides a roadmap for climate actions that will reduce emissions and build climate resilience.

Paris Agreement – Frequently Asked Questions

What is the present status of the paris agreement on climate change.

The Paris Agreement on climate change officially entered into force on 4 November 2016, after 55 countries accounting for 55 per cent of the total global greenhouse gas emissions, deposited their instruments of ratification, acceptance or approval with the UN Secretary-General.

As of 28 September 2017, 166 countries have joined the Paris Agreement.

What is the next step towards the implementation of the Paris Agreement?

What are the most significant aspects about the new agreement.

The agreement provides a pathway forward to limit temperature rise to well below 2 degrees, maybe even 1.5. The agreement provides a mechanism to increase the level of ambition.

The Paris Agreement is an ambitious, dynamic and universal agreement. It covers all countries and all emissions, and is designed to last. This is a monumental agreement. It solidifies international cooperation for climate change. It provides a way forward.

The Paris Agreement sends a powerful signal to markets that now is the time to invest in the low emission economy. It contains a transparency framework to build mutual trust and confidence.

It will serve as an important tool in mobilizing finance technological support and capacity building for developing countries. And it will also help to scale up global efforts to address and minimize loss and damage from climate change.

Paris is a beginning—we now have to implement the Agreement. But we have taken a giant step forward.

Is this agreement really going to help?

The agreement is ambitious and it provides all the tools we need to address climate change, for reducing emissions and to adapt to the impacts of climate change.

The proof will be in the implementation, by governments, businesses and civil society.

What does the agreement require countries to do?

Countries officially submitted their own nationally determined climate actions. They have an obligation to implement these plans, and if they do, it will bend the curve downward in the projected global temperature rise.

The agreement not only formalizes the process of developing national plans, but also it provides a binding requirement to assess and review progress on these plans. This mechanism will require countries to continuously upgrade their commitments and ensure that there will be no backtracking.

This agreement is a clarion call from governments that they are ready for implementing the 2030 Sustainable Development Agenda.

What happens if a country doesn’t live up to its commitments? Would there be any enforcement?

There is no benefit to flouting the Agreement. Any short-term time gain will be short-lived. It will undoubtedly be overshadowed by negative reactions, by other countries, financial markets, and most important, by their citizens.

Developing countries stressed the need for equity and fairness. Does the Agreement provide that?

How can paris get us to the 2 degree—or even 1.5 degree goal.

We have an agreement and we have a chance now to reach our goal. We couldn’t say that without an agreement. The Paris Agreement will put us on a pathway to achieve the 2 degree goal or less. We did not expect to leave Paris with commitments to reach that goal, but rather, with a process that will get us there. And that is what the Agreement provides.

How are climate change and the Paris Agreement linked with the Sustainable Development Goals?

The Paris Conference featured thousands of climate action announcements that demonstrated how civil society and the private sector are moving forward to address climate change.

Why is it so urgent that we do something now?

We can limit global temperature rise to less than 2 degrees if we take action now. We need all countries and all sectors of society to act now—it is in the interests of everyone.

It is doable. Taking climate action now makes good economic sense. The more we delay, the more we pay. We can promote economic growth, eradicate extreme poverty, and improve people’s health and well-being by acting today.

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Why it’s important to learn about climate change

What is climate change?

Climate change primarily refers to long-term shifts in temperatures and weather patterns. Although some shifts in climate are natural, human activities—such as the burning of fossil fuels and deforestation—are significant drivers of climate change. Energy, industry, transportation, landfills, and agriculture all contribute to greenhouse gas emissions (including carbon dioxide and methane) that trap the sun’s heat in the atmosphere and contribute to global warming—which threatens human, economic, and environmental well-being. Some examples of the consequences of climate change include intense droughts, forest fires, sea level rise, flooding, melting polar ice caps, catastrophic weather events, and a decline in biodiversity.

What a Certificate in Climate Change prepares you to do

When you commit to studying climate change, you gain the opportunity to develop the skills and policy insights that will allow you to make a positive impact on the environment and address the pressing impact of climate change. In the 4-course Certificate in Climate Change at Penn LPS Online, you’ll obtain an understanding of the Earth’s climate system and the ways it has changed over time. Through the lens of oceanic and atmospheric sciences, you’ll learn about the natural and human activities that drive climate change and develop the rhetorical ability to effectively communicate your understanding with a diverse audience.

Read on to discover more about the skills and knowledge you will obtain in the Certificate in Climate Change at Penn LPS Online.

Learn atmospheric and ocean dynamics to understand fundamental climate processes and changes

In the Certificate in Climate Change at Penn LPS Online, you’ll have a chance to deepen your insights into methods of scientific inquiry in the field. CLCH 1600: Oceanography provides an overview of marine geology, physical oceanography, and marine chemistry. This course explores topics including marine provinces, sediments, tides, renewable ocean energy, how plate tectonics shape and disrupt the ocean, and the relation between ocean circulation and climate change.

In CLCH 2200: Atmospheric Science you learn the fundamentals of how air moves, gaining insight into weather and climate change prediction and their impact on society. Primary course topics also include atmospheric composition, living organisms, ecosystems, and environmentally important issues such as greenhouse gases, acid rain, urban smog, and air toxics.

Analyze natural disasters and environmental threats both globally and regionally

Deforestation, wildfires, lead in water, the prevalence of plastics in the ocean, and other progressively more destructive natural disasters have been top-of-mind in recent years. In CLCH 3100: Global Environmental Issues , you will explore the underlying causes and potential solutions to eight such critical environmental concerns.

Through case studies taken from around the planet—including forest fires in the Amazon, the Indonesian mud flow disaster, changes in rainfall patterns, and the return of wolves to Yellowstone—you’ll become familiarized with current knowledge, debate, human impacts, economic consequences, policies, and potential resolutions for these issues. And you’ll have a chance to take a deep dive into one major environmental problem through a semester-long group project that culminates in a final paper.

Understand the history and gradations of climate change

In the Certificate in Climate Change at Penn LPS Online, you’ll also explore the mechanisms that drive climate change and learn how to use natural environmental change as a benchmark to assess human impacts, recent climate change, and potential future changes. CLCH 2300: Climate Change looks into the cryosphere (frozen parts of the world) and builds upon previous coursework to help you gain a deeper understanding of the science behind the Earth’s climate change. As you explore historical climate, you’ll learn how scientists know what it was like in the past and how and why we believe certain changes have occurred.

You will also examine current evidence for climate change such as rising sea levels, loss of glacier mass, and deviations in weather systems—and examine potential environmental impacts—to help you critique different climate models and explore climate policy in the United States and around the world.

Hone communication skills to share understanding of climate change and its implications more effectively

It’s clear that understanding both the science and policy implications of climate change is important. But it’s also critical that you be able to communicate this knowledge clearly and successfully to the broader public who may not have a scientific background. That’s where CLCH 3000: Communicating Science comes in. This course will inform you of strategies to refine your rhetorical skills and help you craft messages that relate research concepts and data to effectively engage different audiences and genres.

One such topic that you may learn how to speak about is disaster management, which refers to organized attempts to prepare for and recover from natural, technological, and terrorist hazards. In CLCH 2100:  Introduction to Disaster Management , you’ll gain an overview of the theory, principles, and operations of disaster mitigation, preparedness, response, and recovery at the federal, state, local, and nongovernmental level. You’ll also investigate the social, political, and economic consequences of these disasters.

Why is it important to learn about climate change?

It is vital to learn about climate change to stay informed on what it is, what the ramifications are, and how we can mitigate it—such as reducing the reliance on fossil fuels like coal and oil, slowing deforestation, and adopting sustainable agricultural practices. According to NASA , the consequences of exceeding a global average temperature increase of two degrees could have a devastating impact: 61 million more humans would be exposed to severe drought, up to 270 million more people would experience water shortages, the prevalence of deadly heat waves and extreme weather events would substantially increase, and almost 100% of coral reefs would die.

Climate change endangers animals. Sadly, rising global temperatures, changing weather patterns, and human development can all have an immensely destructive impact on wildlife. The increase in temperature affects animals’ food sources, vegetation, and access to water, which can cause critical losses of habitat for animals such as African elephants, giant pandas, monarch butterflies, sea turtles, tigers, polar bears, and dolphins.

The sharp increase in climate and weather-related natural disasters such as wildfires, droughts, and hurricanes have also caused disastrous losses of habitat and lives of animals. For example, the 2019-20 bushfires in Australia are estimated to have killed or displaced three billion kangaroos, koalas, and other wildlife.

With changes in ecosystems also comes an uptick in human-wildlife conflict as people and animals, such as jaguars, branch out in search of resources and end up sharing more crowded spaces. Ultimately, all of these issues can lead to extinction if not effectively addressed. For instance, the North Atlantic whale is currently struggling to survive due to the effects of rising ocean temperatures and increasing conflicts with anglers and their nets and vessels.

Climate change threatens important ecosystems. Climate change also has an increasingly ruinous impact on important ecosystems and biomes, including rainforests, coral reefs, and polar ice caps. In the Amazon, the 1.4 billion acres of dense forest represent half of the world’s remaining rainforest and 1 in 10 of all the known species on Earth. Over 1/3 of this precious habitat is threatened not only by climate change, but by deforestation, which in turn fuels the release of additional greenhouse gases.

The Coral Triangle contains nearly 600 different species of reef-building coral, six of the world’s seven marine turtle species, and over 2,000 species of reef fish. Warmer air and ocean temperatures are also causing coral bleaching and increased carbon dioxide in the atmosphere is resulting in ocean acidification, both of which are threatening this vital marine area.

The Earth's polar regions are home to diverse landscapes containing everything from polar ice caps and tundra to the sea, which support endangered wildlife such as the polar bear. Unfortunately, according to NASA, Antarctica is losing ice mass at an average of 150 billion tons per year and Greenland is losing 280 billion tons per year, contributing to rising sea levels and loss of habitat for the animals that populate these areas.

Climate change damages human health and infrastructure. The reality is that if not mediated, climate change has the potential to hurt natural ecosystems and infrastructure, increase the frequency of natural disasters, and pose significant health risks through food shortages and increased temperatures and pollution. For example, the destruction of coral reefs not only impacts the marine ecosystem, it also affects food supplies in coastal areas.

According to the  U.S. Global Change Research Program , the consequences of unchecked climate change include:

• Increasing challenges to human health and safety, quality of life, and economic growth
• Rising temperatures, drought, flooding, and wildfires will increasingly disrupt agricultural productivity in the US
• The transmission of disease through insects, pests, food, and water that will increasingly threaten peoples’ health
• Challenges to livestock health and crop declines that will threaten rural livelihoods, food security, and price stability
• Chronic high-tide flooding in coastal communities that will lead to serious financial impacts for homeowners and businesses
• Stresses to aging infrastructure from heavy rain, flooding, extreme heat, and other events that will degrade performance with the potential for threats to national security, essential services, and human health

Climate change will affect future generations. The bottom line is that no matter who you are or where you live, you cannot escape the effects of climate change. Global warming, air pollution, acidification of the ocean, destructive weather, and human activities will also have an increasingly harmful impact on future generations. However, it is possible to educate others on the dangers of climate change—including what we as individuals can do to mitigate it—and to champion businesses, political leaders, and environmental groups who are willing to act by supporting environmental policies that make a real difference. By promoting awareness, encouraging sustainable practices, and fostering resilience in the face of climate challenges, we can pave the way for a more sustainable and secure future for all.

Learn more about climate change, today

The Certificate in Climate Change at Penn LPS Online arms you with the knowledge to understand Earth’s climate system and the skills to more effectively communicate the consequences of the changing environment to businesses, communities, and the planet at large. Being able to comprehend, prepare, and mitigate the results of climate change is relevant to many fields including environmental research and science, land management, state and local community planning, government policymaking, and business in general. As an added bonus, the Ivy League online courses in this certificate program are scheduled to provide the flexibility to enhance your climate change knowledge as you move forward in your career.

Ready to get started? If you haven’t yet done so,  fill out an enrollment form  to take the first step in your Ivy League education at Penn LPS Online. Or  view our  course guide  to see the full list of offerings available.

Works consulted

https://www.mooc.org/blog/why-is-it-important-to-study-climate-change https://www.wwf.org.uk/updates/10-reasons-why-climate-change-important https://www.un.org/en/climatechange/what-is-climate-change https://www.worldwildlife.org/threats/effects-of-climate-change https://www.ifaw.org/journal/impact-climate-change-animals

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How Air-Conditioning Conquered America

Indoor cooling has transformed american life, reshaping homes, skylines and where people choose to live. as the planet warms, is that sustainable.

This transcript was created using speech recognition software. While it has been reviewed by human transcribers, it may contain errors. Please review the episode audio before quoting from this transcript and email [email protected] with any questions.

From “The New York Times,” I’m Michael Barbaro. This is “The Daily.”

[MUSIC PLAYING]

Today, the story of how air conditioning has become both our answer to a warming planet and a major obstacle to actually confronting it. My colleague, Emily Badger, on the increasingly dangerous paradox of trying to control the temperature.

It’s Friday, August 16.

Emily, I want to start with a very personal question for you. What is your relationship to air conditioning?

So, at this exact moment, I am sitting in no air conditioning and it is kind of uncomfortable. And I’ve turned it off because it’s loud and it’s not very conducive to recording a podcast.

[CHUCKLES]: I didn’t mean right now, I meant in the larger arc of your life. But thank you for turning it off for the purposes of this episode.

Yeah. So I grew up in Chicago in this brick three flat apartment building, this very classic Chicago architecture, you know, built in the early 1900s. And it didn’t have air conditioning, so I didn’t have air conditioning growing up. Hardly anybody I knew had air conditioning growing up because we all lived in buildings like this.

Not even window units, just didn’t happen.

Nope, we didn’t even have a window unit in my family. And it wasn’t that big of a deal, in retrospect. We had, in this apartment, these big open windows that you could open and you’d generate a cross breeze through them. And there’s this kind of lovely breeze that comes off of Lake Michigan in the summer. And when it gets really, really hot, you know, you take a cold shower at night before you get in bed. You eat a lot of ice cream.

I can’t even remember if we had air conditioning in the schools that I went to. But it just wasn’t something that I thought very much about or really even experienced very much.

Right. You didn’t miss it. You didn’t even know it could be.

Yeah, exactly.

And then, the first job that I got out of college, I moved to Orlando, and totally different environment. I mean, living in Florida is the story of moving from one air conditioned box into another. You’re in your air conditioned apartment. You get in your air conditioned car. You don’t walk anywhere. You drive everywhere you go. You drive to your air conditioned office. You go to air conditioned bars. And it’s a really, really integral to life there in a way that was very foreign to me as someone growing up in the North.

So you went from a dearth of air conditioning to suddenly being saturated by it. And was that a happy development?

You know, I don’t think that I really gave it that much thought. I mean, living in Orlando surrounded by air conditioning, it’s just sort of that’s the air that you breathe. That’s the way everyone lives. And I think this is probably true for lots of people. We don’t really give it a lot of thought. It’s just sort of a background part of our environment.

But as I have written for years now about urban policy in cities, and how we live, and how we develop cities, it’s sort of become increasingly clear to me that air conditioning is this incredibly important thing that is shaping everything around us. You know, it’s shaping where Americans live, where they choose to move to. It shapes how our houses look. It shapes what our skylines look like. It’s responsible for saving lives and heat waves. In many ways, it’s really improved our quality of life.

But it’s increasingly clear to us that there are some downsides to this. And one of those downsides is that while we’re all sitting in our air conditioned homes, and offices, and cars, and we’ve set the thermostat to exactly 72 degrees, we’re becoming increasingly detached from what’s happening in the environment outside. It is a lot easier to ignore that it’s 100 degrees outside when you’re sitting inside air conditioning.

And, in some ways, I think we have forgotten how to live with heat. We have forgotten how to live with the climate as it existed before air conditioning. And having forgotten that, it’s probably going to cause some problems for us going forward.

Well, Emily, what did the American landscape look like when people did have to contend with the heat in the days before air conditioning?

So I think about two big things in particular. One is that the buildings that we spend time in looked different. We designed houses and other kinds of buildings in ways that were really sort of thoughtfully trying to contend with the temperature outside.

And so you’ve got these buildings in the Southwest in the United States that have these thick Adobe walls that do a really good job of keeping the sun and its heat out. You’ve got these cottages and bungalows in the Southeast that are raised up off the ground so that they’re not receiving the heat that’s absorbed by the Earth.

They’ve got big windows. They’re thinking a lot about cross ventilation. They’ve got high ceilings so that, as heat rises inside your home, you’re not marinating in it while you’re sitting in your living room. They’ve got front porches where people sit at the end of the day in order to try to cool off.

And then you’ve got the building like the one I grew up in, in Chicago, which I mentioned — these sort of thick brick masonry buildings, which are also designed in a way that is making it possible for me to grow up in the 1980s and ‘90s and be OK with the fact that I don’t have air conditioning.

Because brick kind of retains cool air.

Right. Right. And so part of what results from all of this is that the buildings in Georgia look different from the buildings in Arizona, look different from the buildings in Chicago. Because in each of those places, we’re designing buildings that react to the particular climate in those environments. And so this is the first big change.

Think of a time when you have to design a building to interact with what’s going on outside, with how humid it is, with how hot it gets. But the other thing that was very different in the pre-air conditioning environment is that there were just a lot fewer people living in the parts of the United States that were really hot and swampy. So it’s kind of incredible to think about it, but 1940, there are fewer people living in the state of Florida than living in the state of Arkansas.

There are about 8,000 people total living in the city of Las Vegas. Dallas and Houston are nowhere to be found on the list of the largest cities in America. So fundamentally, before air conditioning, there just aren’t a lot of people living in places where it is uncomfortable if you’re not controlling the temperature in some way.

Right. If it’s too hot, then you just don’t live there.

Right. So climate shapes your decisions about where to live. It shapes your decisions about how to build housing. It shapes your decisions about where to spend your time and your house. Maybe you go onto your front porch in the evening when it’s cooling down. You know, in many ways, our behavior is shaped by the climate. And then air conditioning comes along and it totally changes everything that I’ve been talking about. Because now the outdoor climate doesn’t really affect what your life is like indoors.

Just tell us about that moment, because I don’t think any of us really know the story.

Yeah. So there have been contraptions invented in the 1900s that were trying to do things like blow forced air over big blocks of ice in order to cool it. But the thing that we really think of as air conditioning is just totally a 20th century story.

It starts at the very beginning of the 20th century in 1902, when Willis Carrier invents this machine that’s kind of controlling the temperature, and the humidity, and the purity of air, particularly in an industrial context. The very first use of this in 1902 is in a printing plant, and fundamentally the problem that it’s solving is that the moisture content in the air is really becoming a problem for printing documents.

You’re saying basically, publishing, journalism is responsible for air conditioning.

Yes, everybody can thank us and then later they can blame us.

And so, in the beginning, what air conditioning is doing is it’s solving an industrial problem. The machines are hot, or maybe it’s a textile mill and too much humidity is sort of destroying your textiles. And also, you want your workers to be productive in these manufacturing spaces.

Lots of people in a small space with hot machines. Right.

Yeah. And so in the very beginning of the 20th century, it’s not about providing comfort for people. It’s about conditioning the environments that manufacturing and industry is having. And then it is this very sort of long story that plays out over several decades, where this invention moves from these industrial spaces into these other kinds of spaces.

Yes, you lucky people. Just sit back for a moment, relax, and notice the delightfully clean, cool, and refreshing atmosphere of this scientifically air conditioned theater. Great, isn’t it?

So then it comes into theaters and becomes almost this marketing tool to attract people inside.

You can enjoy great motion picture entertainment all summer long in cool comfort.

Go see a movie and enjoy air conditioning while you’re in there.

Yes, low-cost all-season air conditioning is the right kind for you. And you’re so right to choose a ‘55 Rambler Cross Country, now at all dealers.

And then, at the same time, cars in America that have air conditioning in them — the share of those cars is rising and rising. It moves into office buildings.

Instead of traveling away from business and home to seek relief, you can obtain this same comfort right in your own home or office through air conditioning.

And then, eventually, after decades of refining this technology, and it gets smaller, and it gets more affordable, and it becomes more advanced —

This lucky baby will sleep quietly through the night.

— it reaches the American home and we get the window unit.

This baby’s RCA air conditioner will keep his room filled with cool, dry, fresh air.

And the window unit is this much more affordable, portable, easy to pick up at the store, bring to your house. You don’t need to get a special installer. You stick it in your window, and now all of a sudden you’re getting all of these benefits of humidity controlled, temperature controlled air inside of your home.

Humidity, controlled, dust and pollen filtered. My indoor climate is always perfect.

At that point it’s off to the races. It takes over the American home. And we can see in census data, for instance, that by about the start of the 1970s, about half of all new single family homes that are built in America have air conditioning in them.

And the other thing that we see in census data at this time is that Americans themselves are starting to move to places that are really hot, like Florida, like Texas, like Arizona, like Nevada, places that are kind of uninhabitable before air conditioning. Now they’re booming in population.

And there was this wonderful editorial that was actually published in “The Times” in 1970 about the census that year, and how 1970 was like, the air conditioning census. And it refers to how air conditioning had become this really powerful influence for circulating people as well as air in this country.

And this is a story that continues right up until this day, where air conditioning is sort of extending its reach into every corner of the country, every sort of housing type. And today, about 2/3 of American households in this country have central air, and about 90 percent, so 9 in 10 of them, have some kind of error conditioning if we include things like window units. And if we look just at New housing that’s built in America today, looking back in 2023, about 98 percent of new single family homes in America had air conditioning.

What you’re talking about is basically 200 or so million air conditioning units, condensers, boxes. That’s a lot.

Yeah. And as air conditioning has extended its reach into every corner of the country, into so many of the buildings where we spend time, I think it becomes clear that we’ve really kind of engineered our modern lives entirely around it.

And our reliance on this technology going forward is both unsustainable, and in fact, it’s put a lot of people in a very vulnerable position.

We’ll be right back.

Emily, walk us through how our reliance on air conditioning is both, as you just said, unsustainable and perhaps even kind of dangerous to us.

So the first obvious thing that it does is it just requires an enormous amount of energy for so many people to be air conditioning so many spaces all the time. And so to think about this in a larger sense, our buildings in the United States are responsible for about 30 percent of the greenhouse gas emissions. And that refers to the fossil fuels that we burn directly to heat and cool buildings, and to cook in them, but also to generate the electricity that then allows us to do things plug in our window units.

So there’s a ton of energy use happening here. But part of what’s also happening is that all of these buildings have been fundamentally designed to consume lots of energy. A lot of these buildings were built during a time, you know, in the ‘50s and the ‘60s and in more recent years, where energy was cheap. The idea that you’re designing a building that demands lots of energy — who cares? We’re not paying a ton of money for the energy.

And in the ‘60s and in the ‘50s, we weren’t particularly thinking about whether or not using energy is going to cause climate change. So because of this, we get this glut of inefficient houses. And this happens not just with houses, but with everything in the built environment.

Think about strip malls, shopping centers, workplaces, even offices — the sort of ubiquitous, tall, boxy, glass-covered office building that we think about in cities all over the country, all over the world — this is a building that is born out of the air conditioning age. That glassy box is designed around air conditioning such that without air conditioning, those kinds of offices don’t make sense.

Right. I’m thinking about the office that you and I call home, the “New York Times” high-rise building in Midtown. That does not feel, for all its virtues, like a building, you’d want to be in without air conditioning.

It’s glass, and tall, and I think it’d be very hot.

Yeah. When you think about tall glass office buildings, they’re basically greenhouses if you’re not controlling the air inside. They’re designed such that not only do you not have to open a window in order to cool off, you couldn’t open a window even if you wanted to. These buildings don’t have windows that open, because they’re designed to be these hermetically sealed environments where we’re going to keep the outside climate out and we’re going to control the climate on the inside. And this idea that the outside doesn’t matter is true in the design of so many of our buildings, our offices, even our homes. And that actually puts people into an incredibly vulnerable situation.

And vulnerable how, exactly?

So let’s assume a storm comes through and the power goes out, or your air conditioning stops working because you’ve been running it all the time, all summer long, or when we have these extreme heat conditions and the electric utility tells you, please try to preserve the amount of air conditioning that you’re using. What happens when, all of a sudden, millions of people who have been living in an environment designed entirely around air conditioning can’t have that air conditioning? We start to see real problems.

And this is an abstract. We have actually seen this happen in the United States even this year, in other recent years, where terrible storms have ripped through the state of Texas and millions of people have been left without power. And when this happens in the middle of a heat wave, people die.

Right. And that seems an example of the multiple ways that air conditioning conspires to make us avoid contending with the realities of heat to return to this idea you introduced earlier on. AC allows more people to go to a place like Texas than they’d ever go if there weren’t AC making them comfortable, and to design and live in homes and offices that become a cauldron without air conditioning when it fails.

Exactly. Air conditioning makes it possible for people to believe that you could be comfortable in Texas in the summer, in Arizona in the summer. And so people move to these places in large numbers. And then, when the air conditioning fails, they’re sort of suddenly thrust into a world where they’re living in the middle of the Arizona desert or they’re living in the middle of Texas on a 110 degree day. And that could be life threatening.

Especially with climate change making it even hotter in these places, it doesn’t really seem sustainable for a lot of people to live in those places without air conditioning, without some kind of artificial tempering of the environment.

Yeah. And it’s not just because of the heat. I mean, is it sustainable for a Metropolitan area of 5 million people to exist in Phoenix in the middle of the desert when there’s also not enough water there for everyone? So air conditioning sort of lulls people into moving to these places, which might be problematic for lots of other reasons, as well. But we’ve sort of convinced ourselves that the climate doesn’t matter. We’re going to control it. We’re going to engineer our way into living with it.

You’re reminding me, Emily, of an episode we did on the show about this very idea. It focused on the water shortage in Arizona and the plans to pipe in — and, as I recall, desalinate ocean water — to deal with the problem of not enough water in Arizona. And it doesn’t really seem fathomable that proposition would ever occur to people if they weren’t living there in the comfort of air conditioning in the first place.

Yeah. So there have been people living in the region of Phoenix for centuries, so it’s not that nobody can ever live there. But what air conditioning does is it enables millions of people to live there who don’t actually want to contend with 100 degree temperatures all summer long. So a place like Phoenix then becomes this perfect example where we now have 5 million people living in the middle of the Arizona desert, and they all have this expectation of comfort there, that any environment that I move into — in my home, in my office, in my car — I should be encased in this cooling, calm, 72 degree humidity controlled environment. And that sense of comfort becomes so deeply entrenched kind of culturally. And this isn’t just about Phoenix. This is about all of us. I think we have set up an expectation or even an entitlement around comfort such that it makes it really difficult to start to ask people, do you really need to turn up your air conditioning today?

So that makes me wonder how people are ever going to get off the air conditioning hamster wheel that we’re describing here. I mean, why would anyone?

Well, we have to figure out how to do something if we want to address climate change. So there are a number of different things that are going to happen here. Air conditioning is going to become more efficient. We’re going to have more renewable energy sources to power it in the future. And I think we’re increasingly going to see architects and builders trying to rediscover these lost ideas that we used to have about how to design buildings with the climate in mind, how to shade them, how to ventilate them in a more natural way.

But I also have talked to some people who say that all of that is not going to be enough. One of them is Daniel Barber, who’s an architectural historian who has thought a lot about life after air conditioning or, as he puts it, after comfort — life in a world where we’re not depending on air conditioning so much. And the point that he makes is that there are difficult things and changes that we would have to do going forward if we know that our buildings are responsible for a lot of greenhouse gas emissions.

Our dependence on air conditioning is responsible for a large share of that, and we have to reduce it in some way. What we all need to do is change our own behavior. We need to think anew about our relationship to comfort. And are we willing to be uncomfortable some of the time? Am I willing to wait until July to turn my air conditioning on? Am I willing to turn it off at night when it’s not really necessary to use it? Am I willing to sleep at 80 degrees instead of 72 degrees?

Or 68 or 65. And he’s talking about asking people to do something really difficult. He is asking people to be uncomfortable.

You are, of course, by conveying this message, putting this problem on individuals, not governments, not states. And lots of people might hear this and think the real solutions have to come from regulators, have to come from institutions, have to come from the people who have a lot more control over how this all works.

I think that there are some ways in which that will happen, too. When we think about new buildings that are being designed or renovated today that are trying to adopt some of these techniques to be less reliant on indoor air conditioning. They’re often institutional buildings you will see cities commit to when we rebuild our schools, when we build a new library, when we build a new civic center, we are going to embody these things that we are asking other people to do, too.

And, obviously, there are government incentives in the United states, for instance, to better insulate your home, to do things that would make your home greener. So there’s certainly a role for government. But what Daniel Barber at least would argue is that we all bear some responsibility. And air conditioning has lulled us into thinking that we’re not impacted by how hot it is outside. But it’s also maybe lulled us into thinking like, I’m not the one who needs to particularly change my behavior in any way.

But, fundamentally, what we’re talking about is people embracing a kind of different cultural idea about what it means to be comfortable. The idea that existing in a room that is artificially cooled to 68 to 72 degrees fahrenheit, that that’s the ideal temperature — that’s not some true fact about the human body. It’s a cultural idea that’s been created over decades by the air conditioning industry, by architects, and builders, and culture, and shopping malls, and movie theaters. And the idea that comfort means this one particular thing is an idea that we have constructed ourselves. And so what if we culturally came up with a different idea about comfort?

What if more people came to accept the idea that going and sitting out on my front porch in the evening is where I get comfort from? And it’s also, by the way, how I interact with my neighbors. And I had stopped doing that when we were all retreating inside to air conditioning. What if we revived the idea that it’s actually quite lovely in the summertime to sleep with an open window and to have fresh air? It’s not impossible to change ideas about this because we created these ideas in the first place.

Well, Emily, thank you very much. We really appreciate it.

Yeah. Thanks, Michael.

Here’s what else you need to know today. On Thursday, the White House said that its newfound authority to use the Medicare program to negotiate prices of prescription drugs with pharmaceutical companies is likely to save taxpayers about $6 billion a year. That power came from President Biden’s Inflation Reduction Act, which became law two years ago. Under it, regulators have now lowered the price of widely used treatments, including blood thinners and medications for arthritis and diabetes, some by up to 79 percent.

And both vice presidential nominees, Minnesota Governor Tim Walz and Ohio Senator JD Vance, have agreed to debate each other on October 1 during a televised face-off hosted by CBS News. That means there will be three debates before election day — one vice presidential debate and two presidential debates between Donald Trump and Kamala Harris.

Finally, remember to catch a new episode of “The Interview” right here tomorrow. This week, David Marchese speaks with the singer Jelly Roll about addiction recovery and putting his whole self into his music.

I think of everything as a going out of business sale, and I give everything I got everything I do every time I do it right now.

Today’s episode was produced by Shannon Lin and Diana Nguyen with help from Michael Simon Johnson. It was edited by Devon Taylor, contains research help from Susan Lee, original music by Marion Lozano, Dan Powell, Rowen Niemisto, and Will Reid, and was engineered by Alyssa Moxley. Our theme music is by Jim Brunberg and Ben Landsverk of Wonderly.

That’s it for “The Daily.” I’m Michael Barbaro. See you on Monday.

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Air-conditioning has become both our answer to a warming planet and a major obstacle to actually confronting it.

Emily Badger, who covers cities and urban policy for The Times, explains the increasingly dangerous paradox of trying to control the temperature.

On today’s episode

Emily Badger , who covers cities and urban policy for The New York Times.

Background reading

From 2017: How air-conditioning conquered America .

Air-conditioning use will surge in a warming world , the U.N. has warned.

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The Daily is made by Rachel Quester, Lynsea Garrison, Clare Toeniskoetter, Paige Cowett, Michael Simon Johnson, Brad Fisher, Chris Wood, Jessica Cheung, Stella Tan, Alexandra Leigh Young, Lisa Chow, Eric Krupke, Marc Georges, Luke Vander Ploeg, M.J. Davis Lin, Dan Powell, Sydney Harper, Michael Benoist, Liz O. Baylen, Asthaa Chaturvedi, Rachelle Bonja, Diana Nguyen, Marion Lozano, Corey Schreppel, Rob Szypko, Elisheba Ittoop, Mooj Zadie, Patricia Willens, Rowan Niemisto, Jody Becker, Rikki Novetsky, Nina Feldman, Will Reid, Carlos Prieto, Ben Calhoun, Susan Lee, Lexie Diao, Mary Wilson, Alex Stern, Sophia Lanman, Shannon Lin, Diane Wong, Devon Taylor, Alyssa Moxley, Olivia Natt, Daniel Ramirez and Brendan Klinkenberg.

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Emily Badger writes about cities and urban policy for The Times from Washington. She’s particularly interested in housing, transportation and inequality — and how they’re all connected. More about Emily Badger

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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/

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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Top 10 Benefits of Climate Action

Published Oct 2, 2009

Climate change is one of the most urgent issues of our day. Several recent studies show that acting quickly and decisively to address this challenge and shift our economy to clean energy will bring significant benefits to the United States—while also helping us avoid some of the worst consequences of unchecked global warming.

Congress has begun the historic process of enacting legislation to reduce global warming emissions and transition the United States to a clean energy economy. To be most effective, such legislation should

• put the nation on a path to cutting emissions by at least 80 percent by 2050 and require significant reductions in the near term as well
• be comprehensive, combining a cap on carbon emissions with crucial policies that help us shift to more efficient and cleaner forms of energy and transportation
• protect tropical forests and fund adaptation to climate change

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Yale Climate Connections

When will climate change turn life in the U.S. upside down?

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The words of explorer John Wesley Powell on the eve of his departure into the unexplored depths of the Grand Canyon in 1869 best describe how I see our path ahead as we brave the unknown rapids of climate change:

We are now ready to start our way down the Great Unknown. We have an unknown distance yet to run, an unknown river to explore. What falls there are, we know not; what rocks beset the channel, we know not; what walls rise over the river, we know not. Ah, well! We may conjecture many things. The men talk as cheerfully as ever; jests are bandied about freely this morning; but to me the cheer is somber and the jests are ghastly.

Powell’s expedition made it through the canyon, but the explorers endured great hardship, suffering near-drownings, the destruction of two of their four boats, and the loss of much of their supplies. In the end, only six of the nine men survived.

Likewise, we find ourselves in an ever-deepening chasm of climate change impacts, forced to run a perilous course through dangerous rapids of unknown ferocity. Our path will be fraught with great peril, and there will be tremendous suffering, great loss of life, and the destruction of much that is precious.

It is inevitable that climate change will stop being a hazy future concern and will someday turn everyday life upside down. Very hard times are coming. At the risk of causing counterproductive climate anxiety and doomism, I offer here some observations and speculations on how the planetary crisis may play out, using my 45 years of experience as a meteorologist, including four years of flying with the Hurricane Hunters and 20 years blogging about extreme weather and climate change. The scenarios that I depict as the most likely are much harsher than what other experts might choose, but I’ve seen repeatedly that uncertainty is not our friend when it comes to climate change. This will be a long and intense ride, but if you stick through the end, I promise there will be a rainbow.

By late this century, I am optimistic that we will have successfully ridden the rapids of the climate crisis, emerging into a new era of non-polluting energy with a stabilizing climate. There are too many talented and dedicated people who understand the problem and are working hard on solutions for us to fail.

Jump to a section of this essay

What is a dangerous level of climate change, climate change’s impacts will be highly asymmetric, an immediate u.s. climate change threat: an insurance crisis, a second potential immediate u.s. climate change threat: a global food shock, “black swan” and “gray swan” extreme weather events, a “new normal” of extreme weather has not yet arrived, longer-range concerns: global catastrophic risk events, devastating impacts from climate change are accelerating, paleolithic emotions, medieval institutions, and godlike technology, hope for the future via ‘cathedral thinking’.

Although there is a major climate change hurricane approaching, we’re busy throwing a hurricane party , charging up our planetary credit card to pay for the expenses, with little regard to the approaching storm that is already cutting off our escape routes. This great storm will fundamentally rip at the fabric of society, creating chaos and a crisis likely to last for many decades.

The intensifying climate change storm will soon reach a threshold I think of as a category 1 hurricane for humanity — when long-term global warming surpasses 1.5 degrees Celsius above preindustrial temperatures, a value increasingly characterized over the last decade as “dangerous” climate change .

For humanity as a whole, this amount of warming is risky, but not devastating. Global warming is currently at about 1.2-1.3 degrees Celsius above preindustrial temperatures and is likely to cross the 1.5-degree threshold in the late 2020s or early 2030s .

Assuming that we don’t work exceptionally hard to reduce emissions in the next 10 years, the world is expected to reach 2 degrees Celsius of warming between 2045 and 2051. In my estimation, that will be akin to a major category 3 hurricane for humanity — devastating, but not catastrophic.

Allowing global warming to exceed 2.5 degrees Celsius will cause category 4-level damage to civilization — approaching the catastrophic level. And warming in excess of 3 degrees Celsius will likely be a catastrophic category 5-level superstorm of destruction that will crash civilization.

We must take strong action rapidly to rein in our emissions of heat-trapping gases to avoid that outcome — and build great resilience to the extreme climate of the 21st century that we have so foolishly brought upon ourselves.

According to the Carbon Action Tracker (see tweet below), we are on track for 2.7 degrees Celsius of warming; if the nations of the world meet their targets for reducing heat-trapping climate pollution, warming will be limited to 2.1 degrees. There’s a big difference between being hit by a Cat 4 versus a Cat 3, and every tenth of a degree of warming that we prevent will be critical.

Two years on from Glasgow and our warming estimates for government action have barely moved. Governments appear oblivious to the extreme events of the past year, somehow thinking treading water will deal with the flood of impacts? https://t.co/fbM4xY9OJe pic.twitter.com/MekGIeU1Z3 — ClimateActionTracker (@climateactiontr) December 5, 2023

As climate scientist Michael Mann explains in his latest book, “ Our Fragile Moment ,” great climate science communicator Stephen Schneider once said, “The ‘end of the world’ or ‘good for you’ are the two least likely among the spectrum of potential [climate] outcomes.” So forget sci-fi depictions of planetary apocalypse. That will not be our long-term climate change fate.

But the impacts of climate change will be apocalyptic for many nations and people — particularly those that are not rich and White. People and communities with the least resources tend to be the first and hardest hit by climate change , not only because poorer people and communities are inherently more vulnerable to the impacts of any disaster, but also because the extremes induced by climate change tend to be worse in the tropics and subtropics, home to many poor nations.

In the U.S., climate change has already turned life upside down for numerous communities. For example, in North Carolina, the financially strapped, Black-majority towns of Fair Bluff and Princeville are in danger of abandonment from hurricane-related flooding (from Hurricane Floyd in 1999, Matthew in 2016, and Florence in 2018). Seven Springs, North Carolina (population 207 in 1960, now just 55) is largely abandoned.

Climate change was a key contributor to these floods; a 2021 study found that about one-third of the cost of major U.S. flood events since 1988, totaling $79 billion, could be attributed to climate change. And for the town of Paradise, California — utterly destroyed by the devastating Camp Fire of 2018, which killed 85 and caused over $16 billion in damage — climate change has been apocalyptic.

In the U.S., the most likely major economic disruption from climate change over the next few years might well be a collapse of the housing market in flood-prone and wildfire-prone states. Billion-dollar weather disasters — which cause about 76% of all weather-related damages — have steadily increased in number and expense in recent years and would be even worse were it not for improved weather forecasts and better building codes. The recent increase in weather-disaster losses has brought on an insurance crisis — especially in Florida , Louisiana , California , and Texas — which threatens one of the bedrocks of the U.S. economy, the housing and real estate market.

In California, the insurer of last resort, the FAIR plan, had only about $250 million in cash on hand as of March 2024.

“One major fire near Lake Arrowhead, where the Plan holds $8 billion in policies, would plunge the whole scheme into insolvency,” observed Harvard’s Susan Crawford, author of “Charleston: Race, Water, and the Coming Storm.”

It is widely acknowledged that higher weather disaster losses result primarily from an increase in exposure : more people with more stuff moving into vulnerable places, including those at risk of floods. Martin Bertogg, Swiss Re’s head of catastrophic peril, said in a 2022 AP interview that two-thirds, perhaps more, of the recent rise in weather-related disaster losses is the result of more people and things in harm’s way.

But this balance will likely shift in the coming decades. Increased exposure will continue to drive increased weather disaster losses, but the fractional contribution of climate change to disaster losses — at least for wildfire, hurricane, and flood disasters — is likely to increase rapidly, making the insurance crisis accelerate.

A 2023 study (Fig. 2) drew attention to a massive real estate bubble in the U.S.: the vast number of properties whose purported value doesn’t account for the true costs of floods. The study estimated that across the U.S., residential properties are overvalued by a total of $121-$237 billion under current flood risks. This bubble will likely continue to grow as sea levels rise, storms dump heavier rains, and unwise risky development continues.

Likewise, U.S. properties at risk of wildfires are collectively overvalued by about $317 billion, according to David Burt , a financial guru who foresaw the 2008 subprime mortgage crisis. Insurers are already pulling out of the areas most at risk, threatening to make property ownership too expensive for millions and posing a serious threat to the economically critical real estate industry.

Climate futurist Alex Steffen has described the climate change-worsened real estate bubble this way:

As awareness of risk grows, the financial value of risky places drops. Where meeting that risk is more expensive than decision-makers think a place is worth, it simply won’t be defended. It will be unofficially abandoned. That will then create more problems. Bonds for big projects, loans, and mortgages, business investment, insurance, talented workers — all will grow more scarce. Then, value will crash, a phenomenon I call the Brittleness Bubble .

Something brittle is prone to a sudden, catastrophic failure and cannot easily be repaired once broken. The popping of the real estate Brittleness Bubble will potentially trigger panic selling and a housing market collapse like a miniature version of the Great Financial Crisis of 2008 but focused on the 20% of American homes in wildfire and flood risk zones. In his 2023 Congressional testimony , Burt estimated that a wildfire and flood-induced repricing of risk of the U.S. housing market could have a quarter to half the impact of the 2008 Great Financial Crisis.

However, the 2008 crisis was relatively short-lived, as fixes to the financial system and a massive federal bailout led to a rebound in property values after a few years. A climate change-induced housing crisis will likely be resistant to a similar fix because the underlying cause will worsen: Sea levels will continue to rise, flooding heavy rains will intensify, and wildfires will grow more severe, increasing risk.

Science writer Eugene Linden wrote in 2023, “as we saw in 2008, a housing crisis can quickly morph into a systemic financial crisis because banks own most of the value, and thus the risk, in housing and commercial real estate.”

Crawford of Harvard recently wrote : “Because insurance can help communities and households recover more quickly from disasters, and because so much of the U.S. economy is driven by spending on housing, the inaccessibility and unaffordability of insurance poses a threat to the stability of the entire economy.”

As Sen. Sheldon Whitehouse , a Democrat from Rhode Island, said earlier this year, “The thing about economic crises is that they come on slowly, until they come on fast.”

How the insurance crisis may play out: the “Wholly irrational and completely ad-hoc pirate capitalism” solution

In his blunt 2023 essay, “ Insurance Politics at the End of the World ,” journalist Hamilton Nolan offers these thoughts on the potential ways this climate change-induced insurance crisis could be addressed:

The rational capitalism solution here is: We accurately price your risk and that risk becomes unaffordable and people move away from areas that are stupid to live in and therefore climate adaptation is achieved. The rational socialism solution is: We collectively embrace the idea that we need to adapt to climate change and the federal government creates long-term programs that incentivize moving away from areas that are stupid to live in and disincentivize “build as much crap in South Florida flood zones as you can now to take advantage of the real estate bubble” and generally cushion the economic blow for all the people whose lives will have to change. The path we are on today, though — the path that our current political system makes likely — is the path of Wholly Irrational and Completely Ad-Hoc Pirate Capitalism: Increasing climate change-induced disasters cause panic among homeowners as a class; politicians rush to grab dollars to enable everyone to live the same as they are now for as long as possible; and eventually the whole thing crashes into the wall of reality in a way that causes uncontainable, national pain rather than just the specific, regional, temporary pain of the smarter solutions.

When will the Brittleness Bubble pop?

When might this “crash into the wall of reality” happen and the Brittleness Bubble pop? Politicians are working extremely hard to keep their jobs by delaying this day of reckoning, artificially limiting insurance rate rises and offering state-run insurance plans of last resort. This approach — the equivalent of giving a blood transfusion to the injured, without stopping the bleeding — does not fix the underlying problem and all but guarantees that the pain of the eventual national reckoning will be much larger. Insurance is designed to transfer risk, but risk is rising everywhere.

As the hurricane season is set to begin soon and wildfire risk gradually increasing, private insurers in some states are fleeing areas considered at high risk. It's leaving so-called "residual," or last resort plans, to pick up the tab. https://t.co/3sxv9m0FOS pic.twitter.com/YTkZ9OlJE3 — Axios (@axios) May 10, 2024

Crawford addressed the issue in a 2024 essay, “ Who ends up holding the bag when risky real estate markets collapse? ” Citing financial guru Burt, she concluded: “2025 or 2026 is when things give way and it becomes very difficult to offload houses and buildings in risky places where mortgages are suddenly hard to get, much less insurance.” When asked in an interview with Marketplace if the market is due for another correction, as homeowners in places with growing risk of flooding and wildfire have to pay more for insurance, Burt said:

This is actually happening right now and is probably going to happen over the next three to five years, like a full reckoning of these new costs for 15 or 20% of the homes in the U.S. … If all their equity is already gone [because of lowered property values], their costs are going up a ton, they can barely afford it, that’s when people walk away.

In the same Marketplace story, though, Ben Keys, a professor of real estate and finance at the University of Pennsylvania’s Wharton School, said, “The idea that we would expect there to be a huge wave of defaults or delinquencies feels relatively unlikely.”

But like Burt, climate change futurist Steffen predicts the real estate Brittleness Bubble will pop within five years (10 at the most).

I suspect we're less than 5 years away from a prolonged surge of value loss in real estate assets based on risk, insurability, economic brittleness and local capacities to ruggedize (or not). That kind of devaluation will echo through the whole economy. https://t.co/Qs0zyMS38g — Alex Steffen (@AlexSteffen) May 21, 2024

This reckoning could come sooner for Florida if another $100-billion hurricane hits. The Florida insurance and coastal property market did manage to withstand the $117-billion cost of Category 4 Hurricane Ian of 2022, but another blow like that might well cause a severe downward spiral in the Florida real estate market from which it might never fully recover. This vulnerability was underscored by Florida Gov. DeSantis during a 2023 radio interview with a Boston host, when DeSantis suggested homeowners should “ knock on wood ” and hope the state didn’t get hit by a hurricane in 2024.

But “knocking on wood” is not an effective climate adaptation strategy for Florida. Because of climate change, Mother Nature is now able to whip heavier bowling balls with more devastating impact down Hurricane Alley. It’s only a matter of time before she hurls a strike into a major Florida city, causing an intensified coastal real estate and insurance crisis. And the odds of such a strike are higher than average in 2024 because of record-warm ocean temperatures in the tropical Atlantic, combined with a developing La Niña event.

Watch out for increased coastal flooding in the mid-2030s

We may manage to avoid a coastal real estate market crash in the next 10 years if we get lucky with hurricanes and if our politicians continue to pump huge amounts of money to bail out the failing system.

But it will become increasingly difficult to keep the coastal property market propped up beginning in the mid-2030s, because of accelerating sea level rise combined with an 18.6-year wobble in the moon’s orbit. Thus, I expect that the longest we might stave off the popping of the coastal real estate Brittleness Bubble is 15 years.

As I wrote in my 2023 post, 30 great tools to determine your flood risk in the U.S. , beginning in 2033, the moon will be in a position favorable for bringing higher tides to locations where one high tide and low tide per day dominate. This will bring a rapid increase in high tide flooding to the coasts of the Gulf of Mexico, the Southeast, the West Coast, and Hawaii. This expected acceleration in the mid-2030s is obvious for St. Petersburg (Fig. 3), plotted using NASA’s Flooding Analysis Tool and Flooding Days Projection Tool . The rapid acceleration in coastal flooding simultaneously along a huge swathe of heavily developed U.S. coast in the mid-2030s will be sure to significantly stress the coastal housing market. And according to the Coastal Flood Resilience Project , the nation is flying blind on the possible impacts: There are no national assessments of the potential loss of major, critical infrastructure assets to coastal storms and rising seas.

Another immediate danger: a series of global extreme weather events affecting agriculture, causing global economic turmoil.

In my 2024 post, “ What are the odds that extreme weather will lead to a global food shock? ” I reviewed a 2023 report by insurance giant Lloyd’s, which modeled the odds of a globally disruptive extreme food shock event bringing simultaneous droughts in key global food-growing breadbaskets. The authors estimated that a “major” food shock scenario costing $3 trillion globally over a five-year period had a 2.3% chance of happening per year (Fig. 4). Over a 30-year period, those odds equate to about a 50% probability of occurrence — assuming the risks are not increasing each year, which, in fact, they are.

Yet another concern for the U.S. is the risk of wholly unanticipated “black swan” extreme weather events that scientists didn’t see coming. As Harvard climate scientists Paul Epstein and James McCarthy wrote in a 2004 paper, “Assessing Climate Instability”: “We are already observing signs of instability within the climate system. There is no assurance that the rate of greenhouse gas buildup will not force the system to oscillate erratically and yield significant and punishing surprises.”

One example of such a punishing surprise was Superstorm Sandy of 2012, that unholy hybrid spawn of a Caribbean hurricane/extratropical storm that became the largest hurricane ever observed and one of the most damaging, costing $88 billion. And who anticipated that a siege of climate-change-intensified wildfires in western North America beginning in 2017, causing multiple summers of horrific air quality that would significantly degrade the quality of life in the West? Or the jet stream experiencing a sudden increase in unusually extreme configurations over the past 20 years, leading to prolonged periods of intense extreme weather over multiple portions of the globe simultaneously? As the late climate scientist Wally Broecker once said, “Climate is an angry beast, and we are poking at it with sticks.”

Just as concerning might be future “gray swan” events — extreme weather events that climate models anticipate could happen but exceed anything in the historical record. (“Gray swan” is an expression first coined by hurricane scientist Kerry Emanuel in his 2016 paper, “ Grey swan tropical cyclones .”) Several potential gray swan events I have written about include a $1 trillion California “ARkStorm” flood , the potential failure of the Old River Control Structure during an extreme flood that allows the Mississippi River to change course, or a storm like 2015’s Hurricane Patricia , with winds over 200 mph, hitting Miami, Galveston/Houston, Tampa, or New Orleans. The risk of gray swan events is steadily increasing.

I’m often asked if the absurdly extreme weather events we’ve been experiencing recently are the new normal. “No!” I reply. “Heat is energy, so the energy to fuel more intense extreme weather events will increase until we reach net-zero emissions. At that time, the climate will finally stabilize at a new normal with a highly dangerous level of extreme weather events.”

Barring a series of extraordinary volcanic eruptions or a major geoengineering effort, even under an optimistic “low” emissions climate scenario, the earliest the climate might stabilize is in the mid-2070s (Fig. 5); thus, the weather will grow more extreme, on average, for at least the next 50 years. Considering that CO2 emissions have not yet peaked and may be following the “Intermediate” pathway shown below, there is considerable danger that the weather will still be growing more extreme when today’s children are very old early next century. But even when net zero emissions are reached, sea level rise will continue to occur at a pace difficult to adapt to, and the climate crisis will continue to intensify.

The high probability that the weather will grow more extreme throughout the lifetime of everybody reading this essay means that we have to take seriously some very bad long-term threats. As I wrote in my 2022 post, “ The future of global catastrophic risk events from climate change ,” a global catastrophic risk event is defined as a catastrophe global in impact that kills over 10 million people or causes over $10 trillion (2022 USD) in damage. Since the beginning of the 20th century, there have been only three such events: World War I, World War II, and the COVID-19 pandemic. But climate change is a threat multiplier, increasing the risk of five types of global catastrophic risk events:

• Coastal flooding from sea-level rise and land subsidence
• Collapse of the Atlantic Meridional Overturning Circulation (AMOC), the powerful currents that circulate warm water in the tropical Atlantic Ocean to the Arctic and back (an August 2024 study gave a 59% chance of an AMOC collapse occurring before 2050)

The likeliest of these is a global catastrophic risk event from sea level rise, which is highly likely to occur by the end of the century. For example, a moderate global warming scenario will put $7.9-12.7 trillion dollars of global coastal assets at risk of flooding from sea level rise by 2100, according to a 2020 study, “ Projections of global-scale extreme sea levels and resulting episodic coastal flooding over the 21st century .” Although this study did not take into account assets that inevitably will be protected by new coastal defenses, neither did it consider the indirect costs of sea level rise from increased storm surge damage, mass migration away from the coast, increased saltiness of fresh water supplies, and many other factors. A 2019 report by the Global Commission on Adaptation estimated that sea level rise will lead to damages of more than $1 trillion per year globally by 2050.

Furthermore, sea level rise, combined with other stressors, might bring about megacity collapse — a frightening possibility when infrastructure destruction, salinification of freshwater resources, and a real estate collapse potentially combine to create a mass exodus of people from a major city, reducing its tax base to the point that it can no longer provide basic services. The collapse of even one megacity might have severe impacts on the global economy, creating increased chances of a cascade of global catastrophic risk events. One megacity potentially at risk of this fate is the capital of Indonesia, Jakarta, with a population of 10 million. Land subsidence of up to two inches per year and sea level rise of about an eighth of an inch per year are causing so much flooding in Jakarta that Indonesia is constructing a new capital city in Borneo.

Is the #AMOC approaching a tipping point? Here's my take after researching this topic for over 30 years. Open access, peer-reviewed, in full colour & understandable for non-experts. https://t.co/gMu6Zw5mR7 pic.twitter.com/mrgzO9NMxR — Prof. Stefan Rahmstorf 🌏 🦣 (@rahmstorf) April 11, 2024

I also expect one or more climate change-amplified global catastrophic risk events from drought will occur this century. Mexico City, with a metro area population of 22 million, has suffered record heat over the past year, is in danger of its reservoirs running dry, and is drilling ever-deeper wells to tap an overtaxed aquifer. Though the city will muddle through the crisis now that the summer rains have come this year, what is the plan for 30 years from now, when the climate is expected to be drier and much, much hotter? Although Mexico City can greatly improve its water situation by fixing a poorly maintained system that has a 40% loss rate , it is unclear how the city will be able to survive the much hotter and drier climate of 30 years from now. And at least 10 other major cities are in a similar bind.

Technology can help us adapt to a hotter climate by providing air conditioning (if you are rich enough), but technological solutions to create more water availability when the taps run dry are much more difficult to achieve. I believe water shortages will drive a partial collapse of and mass migration out of multiple major cities 20-40 years from now, significantly amplifying global political and economic turmoil. For example, a 2010 study, “ Linkages among climate change, crop yields and Mexico-US cross-border migration ,” found that a 10% reduction in crop yields in Mexico leads to an additional 2% of the population emigrating to the United States.

In his frightening 2019 book “ Food or War ,” science writer Julian Cribb documents 25 food conflicts that have led to famine, war, and the deaths of more than a million people — mostly caused by drought. Since 1960, Cribb says, 40-60% of armed conflicts have been linked to resource scarcity, and 80% of major armed conflicts occurred in vulnerable dry ecosystems. Hungry people are not peaceful people, Cribb argues.

Though climate change itself is not accelerating faster than what climate scientists and climate models predicted , devastating impacts from climate change do seem to be accelerating. That is because the new climate is crossing thresholds beyond which an infrastructure designed for the 20th century can withstand. These breaches are occurring in tandem with an increase in exposure — more people with more stuff living in harm’s way — which is the dominant cause of the sharp increase in weather-disaster losses in recent years. It’s sobering to realize that the current U.S. insurance crisis has primarily been driven by increased exposure and foolish insurance policies that promote development in risky places — not climate change — and that climate change’s relative contribution to the crisis is set to grow significantly.

Accelerating sea level rise alone is sure to cause a massive shock to the U.S. economy; according to a 2022 report from NOAA , sea level along the U.S. coastline is projected to rise, on average, 10-12 inches (0.25-0.30 meters) in the next 30 years (2020-2050), which will be as much as the rise measured over the last 100 years (1920-2020). At this level, 13.6 million homes might be at risk of flooding by 2051 , triggering a mass migration of millions of people away from the coast.

If we add to sea-level-rise-induced migration the additional migration that will result from climate change-intensified wildfires, heatwaves, and hurricanes, we are forced to acknowledge the reality that a nation-challenging Hurricane Katrina-level climate change storm has already begun in the U.S., one which has the potential to cause catastrophic damage. As I wrote in my June post, The U.S. is finally making serious efforts to adapt to climate change , there have been some encouraging efforts to prepare for the coming mass migration. But, as I argued in my follow-up post, The U.S. is nowhere near ready for climate change , we remain woefully unprepared for what is coming.

And my subsequent post, Can a colossal extreme weather event galvanize action on the climate crisis? , argues that we should not expect that any future extreme weather event or breakdown of the climate system will galvanize the type of response needed — we’ve already had at least 13 events since 1988 that should have done so, yet have not. Even if such an event did prompt strong, transformative change, it’s too late to avoid having life turned upside-down by climate change. It’s like we’ve waited until our skin started getting red before seeking shade from the sun, and we’re only now taking our first stumbling steps toward shade. Well, it’s a long hike to shade, and a blistering sunburn is unavoidable.

Given the unprecedented nature and complexity of this planetary crisis, there is huge uncertainty on how this drama may unfold; there are climate scientists who offer a more optimistic outlook than I do (for example, Hannah Ritchie , author of “Not the End of the World”), and those who are more pessimistic ( James Hansen ).

I suggest that you make the most of the current “calm before the storm” and prepare for the chaotic times ahead, which could begin at any time. I will offer my recommendations on how to do this in my next post in this series, “What should you do to prepare for the climate change storm?”

The urgency to rapidly deal with the climate crisis was succinctly summarized by the Intergovernmental Panel on Climate Change in its latest summary report: “There is a rapidly closing window of opportunity to secure a livable and sustainable future for all.”

But taking advantage of that window of opportunity is difficult because of human psychological and political realities. In climate scientist Peter Gleick’s 2023 book, “The Three Ages of Water,” he quotes Harvard’s E.O. Wilson, father of sociobiology, who perhaps said it best: “The real problem of humanity is the following: We have Paleolithic emotions, medieval institutions, and godlike technology. And it is terrifically dangerous, and it is now approaching a point of crisis overall.”

The boat of civilization has already hit multiple rocks along the rapids of climate change and is taking on water. Perilous rapids with even more dangerous rocks and waterfalls lie before us, but the course of our boat cannot be so easily altered to avoid the rocks, because of our Paleolithic emotions and medieval institutions. As a result, we may have only a few more years — or perhaps as long as 15 years — of relative normalcy in our everyday lives here in the U.S. before the approaching climate change storm ends our golden age of prosperity. But this “golden age” was made of fool’s gold, paid for with wealth plundered from future generations.

Though this essay has dwelt on some grim realities, I am optimistic that we will prevent climate change from becoming a civilization-destroying category 5-level catastrophe. But we must fight extremely hard to correct the course of our boat and not allow its inertia to carry us into the rocks that stud the rapids of climate change. This is not a task that can be accomplished in our lifetimes.

Susan Joy Hassol, the climate communication veteran who served as a senior science writer on three National Climate Assessments, put it this way in an interview with Yale Climate Connections contributor Daisy Simmons: “This is the fight of our lives, and it’s a multigenerational task. We need what’s been called ‘cathedral thinking.’ That is, the people who started working on that stone foundation , they never saw the thing finished. It took generations to get these major works done. This is that kind of problem. And we have to all do our part. The more I act, the better I feel, because I know I’m part of the solution.”

Actions we take now will yield enormous future benefits, and the faster we undertake transformative actions to adapt to the new climate reality, the less suffering will occur. The Global Commission on Adaptation says that “every $1 invested in adaptation could yield up to $10 in net economic benefits, depending on the activity.” We should work to build our cathedral of the future with the thought that each action we take now will multiply by a factor of 10 in importance in the future.

An excellent @nytimes article on rapid growth of wind, solar, & EVs, including factories, in the US. Costs are below fossil and nuclear (see graphs). Reasons why, graphs with how fast, pictures of it happening. https://t.co/uglQDnE97t pic.twitter.com/oIpLmlp28v — Willett Kempton (@WillettKempton) September 5, 2023

But some of the hardest work has been done: The cornerstone of this cathedral of the future has already been laid. The clean energy revolution is here and has progressed far more rapidly than I had dared hope. Passage of the 2021 Bipartisan Infrastructure Law and 2023 Inflation Reduction Act has been instrumental in getting this cornerstone laid. Solar energy is now the cheapest source of energy in world history, and the costs of wind power and battery technology have also plummeted. Two recent reports were optimistic that climate-warming carbon dioxide emissions had finally peaked in 2023, and GDP growth has decoupled from carbon dioxide emissions in recent years, giving hope that economic growth can still occur without making the planet hotter.

At its heart, the root of the climate crisis is humanity’s spiritual inharmoniousness: We overvalue the pursuit of material wealth and we worship billionaires but undervalue growing more connected to our spiritual selves and acting to preserve and appreciate the natural systems that sustain us. Making yourself more peaceful and loving through quiet spiritual pursuits and time spent in nature will help counteract the anxiety and fear sparked by the climate crisis. But in tandem with your increased peace must come a righteous anger to “throw the money changers out of the temple” and topple the might of the fossil fuel industry and its enablers.

So put your shoulder to an oar! Help us power the boat of civilization through the rapids of climate change. All of humanity shares the same boat, and you have the opportunity to make your own unique and valuable contribution to the effort.

This is a nice way to visualize the pathway to your unique climate action. https://t.co/cjlv5XXrak — Jeff Masters (@DrJeffMasters) May 15, 2024

As promised, here is the rainbow at the end. It’s the intro image from my first and last Weather Underground blog posts, “ The 360-degree Rainbow ,” and “ So long, wunderground! ” My unique and valuable contribution to building our new cathedral has not yet reached the end of the rainbow, for a rainbow has no end — it is a full circle. One just has to fly high in a rainstorm where the sun is shining to see it.

I will continue to make my voice heard as long as climate science-denying politicians, corporations, media pundits, and wealthy individuals continue to row the boat of civilization into the rocks of climate-change catastrophe. I encourage those of you who have learned about extreme weather and climate change from me to do the same. To get started, learn from one of the best communicators in the business, climate scientist Katherine Hayhoe :

Recommended reading:

• Can a colossal extreme weather event galvanize action on the climate crisis?
• The U.S. is nowhere near ready for climate change
• The U.S. is finally making serious efforts to adapt to climate change
• Book review: “On the Move” is a must-read account of U.S. climate migration
• Book review: “The Great Displacement” is a must-read
• Part one of my three-part sea level rise series: How fast are the seas rising?
• Part two of my three-part sea level rise series: Eight excellent books on sea level rise risk for U.S. cities
• Part three of my three-part sea level rise series: 30 great tools to determine your flood risk in the U.S.
• Bubble trouble: Climate change is creating a huge and growing U.S. real estate bubble
• Many coastal residents willing to relocate in the face of sea level rise
• Disasterology: a book review
• The future of global catastrophic risk events from climate change
• With global warming of just 1.2°C, why has the weather gotten so extreme?
• Recklessness defined: breaking 6 of 9 planetary boundaries of safety
• Retreat From a Rising Sea: A book review
• Quick facts on climate change, extreme weather-related events, and their impacts on society
• Susan Crawford’s Substack feed on climate adaptation policy, Moving Day
• Climate futurist Alex Steffen’s newsletter

Susan Joy Hassol ( @ClimateComms ) and Bob Henson ( @bhensonweather ) provided helpful edits for this post.

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Jeff masters.

Jeff Masters, Ph.D., worked as a hurricane scientist with the NOAA Hurricane Hunters from 1986-1990. After a near-fatal flight into category 5 Hurricane Hugo, he left the Hurricane Hunters to pursue a... More by Jeff Masters