ES 10 lecture notes are here. Global warming will change many things in ways foreseen and unforeseen. Senator James Inhofe, Chairman of the U.S. Senate Environment and Public Works Committee, calls global warming the "greatest hoax ever perpetrated on the American people". Is he correct? Why does he express this opinion? (Hint: follow the money). Check out skepticalscience

For entertainment, see the Competitive Enterprise Institute's commercial "CO2: They call it pollution, we call it life" (again: follow the money). Would it be valid to cast fecal matter, or even water, in the same vein? How do each resemble CO2, and how do they differ?