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.
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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.
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.
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.
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.
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.
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.
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.
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
Is climate change real? is it mostly human caused?
I think that humans are a large part of climate change. The attached article discusses climate change and how we are affecting it. The greenhouse effect is a large reason for the increased amounts of CO2. For example, in a graph attached you can see that the amount of ppms of CO2 in the air is increasing steadily. This is caused by factories, burning food and trees, and the growth of the population (which means more people contributing).
Climate change would be have a direct effect on life on Earth. It would raise sea levels which would result in more flooding and unexpected stroms. It would also reduce our amount of fresh water and animals that live in colder climates. We need to go to measures such as not burning forests and using more renewable energy.
These are my references
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