Spray painting the sky to deflect sunlight and cool the earth sounds like science fiction. But could geoengineering buy us time against global warming? Ken Caldeira, Atmospheric Scientist, Carnegie Institution for Science, Stanford University Albert Lin, Professor, UC Davis School of Law Jane Long, Co-chair, Task Force on Geoengineering, Bipartisan Policy Center Armand Neukermans, Physicist and Inventor This program was recorded in front of a live audience at the Commonwealth Club of California on May 8, 2015.

Learn more about your ad choices. Visit megaphone.fm/adchoices