JAMES HANSEN: THE THREAT TO THE PLANET: DARK AND BRIGHT SIDES OF GLOBAL
WARMING (GEOLOGY & PLANETARY SCIENCE)

New Streaming Theater Presentation: James Hansen, director of the
NASA Goddard Institute for Space Studies and adjunct professor of
earth and environmental sciences at Columbia University, presented
the 2007 Harris Distinguished Lecture. In a talk called "The Threat
to the Planet: Dark and Bright Sides of Global Warming," Hansen
explained how greater understanding of Earth's climate system,
carbon cycle, and fossil-fuel reservoirs would lead to a stable
climate with cleaner air and water. However, this knowledge has not
been pursued with the necessary urgency.

Details: http://today.caltech.edu/theater/