Global warming is an extemly complicated issue in the science community. Many scientists agree that the increseing amount of human caused green house gases such as the burning of fosil fuels are incredibly dangerous. The New York Times say that global emissions jumped up by 5.9 percent in 2010 being the largest amount on record. Thus it can clearly be shown that it is our fault for burning fossil fuels and releasing other green house gases into the atmosphere. Methane which is another greenhouse gas can be found beneth the surface of frozen lakes in the artic. As global warming increases the lakes thaw releasing all of the trapt methane creating more emmisions. Another example of how humans are responsibe for the change in temperatures is aviation emissions. Airplanes cause roughly 3 percent of all global carbon dioxide emissions. Without all of our busnisses and corporations polluting the world with their sources for fuel, the world would have have rapidly heated so fast

http://topics.nytimes.com/top/news/science/topics/globalwarming/index.html