On the 20th anniversary of his groundbreaking global warming testimony before the U.S. Senate, James Hansen discusses his belief that the planet is dangerously close to tipping points that would be extremely difficult to reverse. The NASA climate scientist reflects on what has and hasn’t changed in two decades, political pressures, and the controversy he’s stirred by speaking out.

Guests

  • James Hansen climate scientist; director, NASA Goddard Institute for Space Studies

Topics + Tags

Comments

comments powered by Disqus
Most Recent Shows

The Big Business Of Looted Antiquities

Wednesday, Aug 24 2016Instability in the Middle East and North Africa has fueled a boom in looted antiquities. New efforts to stem the tide include monitoring archaeological sites from space. The fight to preserve the world's cultural heritage sites.