Streaming videos of talks by David Archer

• Global Warming in Geologic Time, Fermi National Labs, Feb 27, 2008.
• Global Warming in Geologic Time, a public lecture at the Perimeter Institute in Waterloo, Canada, December 6, 2006.
• Natural CO2 sinks and their policy implications, from the Environmental Science Seminar Series from the American Meteorological Society, Washington, D.C., January 14, 2008.