Anne Waple, of the Climate System Research Center, stresses the importance of taking global warming trends seriously. Click either the 28k or 100k button to view the video. More Greenhouse Gases Carbon dioxide is the most common of the greenhouse gases, but it is not the only one. The other natural gases that contribute to the greenhouse effect are methane and nitrous oxide. Methane is introduced into the atmosphere by the intestinal gases from cows and sheep and as a byproduct of rice paddy farming.
Nitrous oxide is a byproduct of burning fossil fuels such as oil, coal, gas, and timber.
From All Angles Ray Bradley measures Arctic lake sediments. Lisa Sorenson counts ducks. Both are contributing to our understanding of climate change. Scientists from such diverse disciplines as geology, biology, and meteorology are studying global warming. Bradley and his group at the Climate System Research Center in Amherst, Massachusetts, study paleoclimatology, the history of climate in prehistoric times.