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Instructions: Read pp. 1-20 of this report, and be sure to review the glossary at the end for any unfamiliar terms. Through this reading, you should understand the basic mechanisms of climate, including the global water and carbon cycles. You should also note the natural variability in the climate system and how this variability is distinct from climate change phenomena. It is also important to understand human contributions to greenhouse gases, and how the greenhouse effect works. (Approximately 80 minutes)