There is a lot of information in this section involving specifics on how human activity affects the increase of carbon dioxide levels in the atmosphere, as well as how the greenhouse gases differ in there ability to add to the warming impact.  In addition, this section explains how scientists use instruments to determine the patterns of climate change over the span of hundreds of thousands of years. One question would be what small scale investigation can students engage in the local community to determine the influence of climate change?

- Tiamo