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Is climate change real?   Is it mostly human caused?

Is climate change real?   Is it mostly human caused? Discussion </> Embed Share Join Now 132

Is climate change real? Is it mostly human caused?

Moderated by Jason Hodin
The ISCFC is all about reducing our individual and collective contributions to climate change.

But is climate change really happening? Is it mostly caused by human activity, including our production of carbon dioxide and other greenhouse gases?

In the United States and elsewhere, there are people who are not convinced by the science. But the great thing about science is that we use evidence to evaluate scientific questions. So what is the evidence related to climate change?

Are you or are you not convinced by the majority of climate scientists who say that climate change is real and largely human caused? Why are you convinced/not convinced? What evidence might change your mind one way or the other?
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Discussions Discussion Is climate change real? Is it mostly human …
Billy Angelou, Feb. 27, 2014

Climate change is first and foremost an issue because people can’t even agree on whether or not it’s an issue in the first place. Before we even get into the solutions, we all (regardless of political party) need to come to the realization that yes, climate change is real and yes, it is affecting us in ways that we can see and feel. If you still believe that the freakish weather and heat waves we’ve been experiencing have nothing to do with climate change, you might want to ask your neighbor what he or she thinks because the majority of Americans now say they believe global warming is causing these incidents.

Billy Angelou
Comments (1)
  • Allison C-US Allison C-US Feb. 28, 2014
    Yep. I love how people seem to adopt this ideal of selective ignorance, as if to hide the fact that they're gradually hurting the earth with their own poor decisions. Climate change is real, harmful, and unfortunate, and we need to do what we can to slow or prevent it. A good start is to just come to agreement that it's a real dilemma, and then go from there.

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Discussions Discussion Is climate change real? Is it mostly human …
Maxwell Coon, Oct. 25, 2013

Many people hold onto the notion that climate change isn’t caused by humans, or isn’t happening at all. Climate change is absolutely happening, and humans are the primary cause. Scientists have theorized since the beginning of the 20th century that the use of coal and fossil fuels could have an effect on the climate of the earth. Later it was shown that carbon dioxide rising into the atmosphere traps heat that would have left the atmosphere, which causes global climate change. In the 1950’s scientists directly linked the increase in carbon dioxide in the atmosphere to the fossil fuel emissions of humans. Scientists across the world all agree that these fossil fuel emissions are the leading cause of global climate change, and there is literally no evidence that has contradicted the ideas and principles of climate change. As soon as we realize that climate change is in fact happening the sooner we can start taking steps to meet the affects it will have on the world, and try to limit the damage.

Maxwell Coon
Comments (4)
  • Soffía Sveinsdóttir Soffía Sveinsdóttir Feb. 12, 2014
    Hi Maxwell
    You are so right and I hate how people think that the scientist are making this thing up and that it's not the humans that are causing this because we are causing this and we have to change this.
  • Caitlin Bond Caitlin Bond Feb. 26, 2014
    Maxwell, I completely agree with you! Climate change is a very real issue that needs to be addressed soon before it becomes a problem we can no longer tackle or take control over.
  • Maddi Ownbey Maddi Ownbey Feb. 27, 2014
    Hey Maxwell, I agree with you completely. We as humans do not understand the impact we have on the environment around us. Everyone needs to figure out how to reduce their carbon footprints. Carpool, walk, ride a bike, there is so many ways to reduce using the gases that are burning away our atmosphere and are causing global warming.
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Discussions Discussion Is climate change real? Is it mostly human …
Vincent Ceja, Oct. 24, 2013

Climate Change is a huge problem that is currently happening in not just one particular part of the world, but is happening everywhere. Many people deny that it’s actually happening, but they are wrong. More than 90% of all climate change is caused by human activity. This activity causes the trend that is the “greenhouse effect.” The greenhouse effect traps radiating heat from the earth in our atmosphere. Many different gases contribute to the greenhouse effect including water vapor, carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons. Human activities are to blame for the rise of this change.
In the last 150 years, atmospheric carbon dioxide levels rose from 280 parts per million to 379 parts per million. i believe that this is all because the industrialization of the world. As we expand our economy, we will create many more harmful plants and factories that slowly destroy the earth.

Vincent Ceja
Comments (2)
  • Christian Duffy Christian Duffy Oct. 25, 2013
    Hello my name is Christian,
    I do agree with your post for many reasons. I do believe that the greenhouse effect is a huge problem and that human activity is to blame for the rise of carbon being released. I think that simple actions such as using less electricity, carpooling, and doing simple tasks will help global warming tremendously. Its a shame that many people don't know about the huge consequences that can come from global warming.
  • Robert Ellis Robert Ellis Dec. 20, 2013
    Most people don't know that I feel the same way

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Discussions Discussion Is climate change real? Is it mostly human …
mayzie elizondo, Oct. 24, 2013

Climate change is going to affect our future. We need to act on this now if we are going to do anything about it. Many people are denying that we humans have such a big impact on global warming, these people are too scared to take fault into their own actions. We have to learn off of the facts, and look at how these wildfires are causing glaciers to melt at such a rapid pace, increasing our sea level. We have to have to change how we live so our ocean is not polluted with a million pounds of carbon every minute! Ignoring this change in our world will not help anything, it will only make things worse.

mayzie elizondo
Comments (2)
  • Giulia O. Italy Giulia O. Italy Oct. 26, 2013
    Hi Mayzie I’m Giulia from Italy. I agree with you that the climate is changing because the glaciers are melting, there are too many wildfires and the sea level is increasing because there is too much CO2 in the world and I think that our planet can’t withstand all this carbon! The scientists are looking for a way to burn the hydrogen to produce water and minimize carbon emissions because the water isn’t pollutant. The hydrogen might be the alternative fuel in the future.
  • Tessa Stefan Tessa Stefan Feb. 19, 2014
    Hi Mayzie, I am Tessa from Germany and I absolutely agree with you. I think most people do not want to change their lifestyles. Using the car is really comfortable and I guess most people do not want to relinquish their comfort because that is the way with fewest resistance.

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Discussions Discussion Is climate change real? Is it mostly human …
Kelsi Schacht, Oct. 24, 2013

Since the idea of climate change is based on science, evidence can prove it. Facts have been shown to the world, but there are still people who do not believe it is happening. In the United States, President Obama has unveiled climate change initiatives only to be dismissed by some republicans who call global warming “absolutely crazy” and “the biggest myth of the last 100 years.” How can people say these things when the facts are right in front of them?
I myself believe that climate change is definitely happening. CO2 has been proven to acidify oceans/harm marine life, wildfires are doubling in size, glaciers are melting, and billions of tons of CO2 is adding to the ozone layer.
Also, the idea of humans being the cause is completely correct. Nothing else could produce as much CO2 and other greenhouse gases as we do. Scientists know more about global warming then most of the public does, and almost all believe that climate change is in fact happening.

Kelsi Schacht
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Discussions Discussion Is climate change real? Is it mostly human …
Andrew W, Oct. 23, 2013

Yes, I do believe that climate change is real, and so do scientists. According to real Climate (“RealClimate: September, 2013.” RealClimate RSS. N.p., n.d. Web. 08 Oct.), in September scientists came to a conclusion that humans are 95% sure HUMANS are the cause.

Though I do see where the other side is coming from. Many events, such at PETM (a 10+ degree Fahrenheit jump in only a couple thousand years), have caused some to believe that the world is just going through a hot spell, rising a little bit quicker than normal.

While both these arguments have their truths, I have to say the change is caused by humans. It cannot be only by coincidence that the steepest rise in temperature ever recorded (the last 50 years) is at the same time where we are all using and burning tons upon tons of carbon dioxide every day, more than ever before.

Andrew W
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Discussions Discussion Is climate change real? Is it mostly human …
Benjamin Lewis, Oct. 21, 2013

I think climate change is very real, the cause however is much more mysterious. Humans definitely play their part, but the world has been known to heat and cool over time. With humans polluting the air as we are, though, it’s hard to say for sure. It could be the glaciers melting in Greenland, for all we know.

Benjamin Lewis
Comments (3)
  • roxy Wheaton roxy Wheaton Oct. 22, 2013
    I agree that the climate change has been happening even before humans started to pollute the earth, but the glacier that are melting in Greenland are a result of human pollution. Fires in Colorado and Canada are sending a of soot over the tundra, causing the heat to get trapped into the snow and having the glaciers melt.
    The worst part about the climate change is that there are very few people that are informed about it. Scientists are doing their best to alert the public that their planet us slowly dying, but with very few research funds and the amount of donations decreasing, it is extremely hard to make everybody aware.
    Although our footprint on the earth is already huge, we can stilly line complete destruction. Recycling is one of the easiest ways to decrease the amount waste that fill our landfills and potentially go into our ocean.
  • luke lawler luke lawler Oct. 24, 2013
    I also agree that the climate has been changing over time. even though most people blame it solely on human pollution there is more to it that that. There have been discoveries that show that there have been significant climate changes millions of years ago which proves human pollution is not the only cause. but with pollution still affecting the climate i think people play a large role in being able to lower CO2 emission and possibly revering the effects in the future.
  • Vincent Ceja Vincent Ceja Oct. 25, 2013
    I agree with your statement, but there is lots of evidence that shows the effect the humans have with climate change. And the glaciers melting in Greenland are a result of our pollution! In the past years the atmospheric carbon levels have risen equally along with our economical rise. The steady rise of earths industrialization is mostly to blame for.

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Discussions Discussion Is climate change real? Is it mostly human …
Justin A-USA, Oct. 11, 2013

Climate change is happening. Ernesto Zedillo summarizes the evidence pretty well in his book, Global Warming: Beyond Kyoto. Vietnam’s National Academy of Public Administration hosts a PDF copy that I link to at the bottom.

The temperature rise in the twentieth century was the highest seen in the past 1000 years based on simulated reconstructions of the climate over that period. The size of the Arctic Sea’s ice sheet has dropped by 20 percent in less than 35 years.

The evidence points to humans as the chief cause of recent climate change. Zedillo discusses “forcing”, which refers to any input to the climate. He explains that the warming that’s happened has been close to the amount of warming predicted to result from anthropogenic forcing, or influence on the climate by humans. He then lists sources of natural forcing, which he claims don’t explain the amount of warming we’ve experienced in the past hundred years: “solar activity, volcanic activity, cosmic rays, and orbital shifts.” He goes further to say that the impact of these kinds of forcing on the climate have diminished recently. From this information and the lack of an accepted alternative cause, he concludes that climate change is mostly caused by human activity.

To me, the evidence pretty clearly points to anthropogenic warming as real. A very accurate simulation of how the environment would have developed in the past several decades without the heavy industrial impacts on the atmosphere might convince me otherwise. The result would have to be something close to how the environment actually ended up today.

http://napa.vn:8080/uris/uploads/1/0815797141.Brookings.Institution.Press.Global.Warming.Looking.Beyond.Kyoto.Dec.2007.pdf
Justin A-USA
Comments (6)
  • Justin A-USA Justin A-USA Oct. 18, 2013
    Bailey, could you give some warrants for your claim that humans don't cause climate change? Even if we can't avoid temperature change, it's still possible for humans to contribute to it. The evidence I talked about shows that it's not just possible; it's the most likely explanation for the change we've seen.

    Why don't you think rising CO2 levels in the atmosphere cause icebergs to melt? I think the burden of proof is on you here. Carbon dioxide traps excessive amounts of heat on Earth, which melts ice.

    Looking at global warming with a focus on security and policy gives a pretty clear picture of how climate change affects human beings. The Huffington post summarizes different sources' spins on the impacts of warming in a blog post “Climate Terror: Global Warming, Failed States, and the Rise of Terrorism.” The Center for Naval Analysis reported that an increase in the global temperature of 1.8 degrees Fahrenheit would reduce global agricultural output by 10%. The book Climatic Cataclysm uses a report from the World Bank to back its claim that that by 2050, which we'll probably live to see, up to a billion people living near coasts could lose their homes to climate change. The International Water Resources Management Institute predicts water shortages in big regions of India and China, the two most populous countries in the world, by 2025. At best, these effects have severe impacts on the quality of life; at worst, they're deadly. You can check the blog post out for more, but those are the impacts mentioned that will happen within our lifetimes.

    The blog post mentions a couple of the claims made in Climatic Cataclysm, but the book goes a lot more in depth than the post does about how climate change impacts us not just by changing the physical environment, but also by influencing society and people's actions. In the book, Sharon Burke predicts over a hundred failed states due to internal conflicts and extremism. She says that the chaos resulting from people's reactions to warming would put 2.7 billion at risk of violent conflict, either between states or within individual states. Dents in agricultural production and water shortages will hit India hard. This would put huge strain on India's tensions with Pakistan. Both of those countries possess nuclear weapons, and the escalation of clash between the two is one of the most likely paths to nuclear conflict out of the possibilities today. Because climate change would affect hundreds of millions of people in India, Burke asserts that a nuclear exchange in the region would be likely.

  • mayzie elizondo mayzie elizondo Oct. 24, 2013
    The carbon that we release into the world every day can not be denied or ignored, this is definitely a huge problem that we need to help fix. To say that none of this will harm us is false. Scientists have proof that we are harming our environment by not being considerate to our environment. Our pollution and soot from wildfires has been building up, acidifying the oceans and increasing heat, causing glaciers to melt. It might not seem like a big deal but every cause has an effect. Glaciers melting causes the rise in sea levels, the loss of polar species. Acidifying the ocean leads to a loss in jobs, harm in marine animals. This all leads on and there is only one way to help it, by changing the way we live and making this world wide problem known to the public.
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Discussions Discussion Is climate change real? Is it mostly human …
Ximing X-USA, Oct. 10, 2013

Global warming has increasingly affected the environment. The annual temperature of tropical regions has exceeded the highest level recorded in the last seven years and the same thing will happen to all parts of the world if nothing stops down it. These exceeded temperatures will first be felt by the tropical area such as Indonesia and will be felt by Washington and New York in 2047. However, humans are totally responsible for the climate change. Since industrial revolution, factories and machines used plenty of coals, oil and other crude materials that release huge amount of CO2 to the atmosphere. The increased density of CO2 in the atmosphere makes world warmer. Nevertheless, most people still keep a large carbon trail by means of frequent transportation, leaving lights and TV on when not using them and so forth. If people do not realize the severity of their improvident habits, they could bring disaster to our earth. Extinction is more likely to occur now. Because of global warming, the ice coverage in arctic has declined significantly and is driving polar bears to the brink of extinction. Other species, especially those in the sea, are also affected by the high temperature. A certain kind of crab could not live after just little increment of the ideal temperature. Species will have to adapt to the change in the environment or they will simply die out. People in the tropical regions are also affected seriously. Food and water resources are usually less accessible in those areas and the habitants are starved more often. On the contrary, most people in the world have not experienced the effect of rising temperature until 2050. It is crucial to teach them the severity of global warming before too late.

http://www.cnn.com/2013/10/10/us/climate-change-study/
Ximing X-USA
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Discussions Discussion Is climate change real? Is it mostly human …
Anashe B-USA, Oct. 10, 2013

Hello everyone!

So I noticed that the title for this discussion includes, “Is it mostly human caused?” which is such a coincidence, because I came across and article with a similar title and I had to read it!

This article, followed by another closely related one, supports with an immense amount of evidence that climate change is real and it is mostly human caused. A University of Hawaii study recently published, states, “By the end of the century, monthly average temperatures will be higher than at any time since 1860.” They supported this claim by going in-depth throughout different geographical locations. According to their results, the tropical areas will be the first places to be affected.

In addition, the article stated that the UN published a report last Friday, stating that they are 95% positive that human activity has caused 50% of climate change. It is clear to see the impact humans have had on the environment. Ever since the invention of cars, we have been burning gas, running power plants on oil and coal, emitting greenhouse gases, and burning carbon-based fuels.

US Secretary of State, John Kerry stated, “Those who deny the science or choose excuses over action are playing with fire,” he said. “Once again, the science grows clearer, the case grows more compelling, and the costs of inaction grow beyond anything that anyone with conscience or common sense should be willing to even contemplate.”
This statement tremendously supports the claim that climate change is happening and that it IS mostly human caused.

The question is now, “What is going to happen to our earth?”
It is a simple answer.
The weather that we witness now will become more grotesque with every additional year that our green house gases are still climbing exponentially.

Therefore, I believe that it is a difficult task, but if we can all change our ways and reduce our carbon footprints, we can stop this climb to our fall.

Additional link: http://www.cnn.com/2013/09/27/world/climate-change-report/index.html

http://www.cnn.com/2013/10/10/us/climate-change-study/
Anashe B-USA
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