ES 10 lecture notes are here. Global warming will change many things in ways foreseen and unforeseen. Here's a site - New Scientist - with excellent climate change info.

Senator James Inhofe called global warming the "greatest hoax ever perpetrated on the American people", but other have changed from denying it is happening to putting the blame elsewhere - natural cycles. What is the scientific consensus? Here's what the world's top two science publications, Science and Nature, say:

Check out these sites for concensus views on climate change: realclimate and skepticalscience

See the Competitive Enterprise Institute's commercial "CO2: They call it pollution, we call it life" 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?