Video

David Archer: Video lectures
http://geoflop.uchicago.edu/forecast/docs/lectures.html

Ralph Keeling: Understanding Atmospheric Oxygen: Global Carbon Dioxide
http://www.youtube.com/watch?v=CsnaXlhctLY&feature=related

James Hansen: Global Warming Crisis
http://www.youtube.com/watch?v=IUVEDtmRC4M

V. Ramanathan: Global Warming and Atmospheric Brown Clouds
http://www.youtube.com/watch?v=D-7t4blgpKs

Dr. Nate Lewis: Where in the World Will Our Energy Come From?
http://www.jpl.nasa.gov/events/lectures/feb08.cfm

Peter Ward on Earth's mass extinctions
http://www.ted.com/talks/lang/eng/peter_ward_on_mass_extinctions.html

The Day the Earth Nearly Died (1 of 5)
http://www.youtube.com/watch?v=TBfjxy_ALzY