Bill Nye Moderates "Climate Change on Earth and Other Planets"

Bill Nye the Science Guy opens and moderates this Boulder, Colorado public event devoted to evidence of climate change throughout our solar system, and especially on Earth. More than 600 enthusiastic attendees gathered on the evening of June 26, 2012.  Sponsored by the Planetary Society, the Southwest Research Institute and NASA, it was part of the Comparative Climatology conference. The very distinguished presenters included David Grinspoon, Jim Hansen, Karen Rice and Brian Toon.