Is the earth experiencing an anthropogenic (human-caused) climate change? Provide support for your answer.
Greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, water vapor, methane, nitrous oxide, and ozone. However, greenhouse gases are also produced due to human activities, such as driving and coal plants.
The earth is experiencing an anthropogenic climate change. In 1988, the United Nations established a think tank of over two thousand scientists to examine the question of human causality relative to climate change. The group found that the earth's carbon dioxide concentration had increased by over 30 percent since 1750, and methane production had nearly doubled. The group reported that the concentration of carbon dioxide in the earth's atmosphere is the highest it has been in over 400,000 years. They added that, while it's impossible to know for sure, the levels of carbon dioxide in the earth's atmosphere are probably the highest they have ever been in the past 20 million years. The speedy and extreme increase in the concentration of these gases suggests that human activity is a root cause of global climate change. The burning of fossil fuels and other emissions is the only reasonable explaination for such rapid change in the earth's atmosphere.