ON THE LINE: Cooling A Warming World

The world is getting warmer and many believe humans are largely to blame. In its recently released report, The Intergovernmental Panel on Climate Change claims with 95% certainty that humans are causing global warming. While the scientists around the globe seem to be coming to a consensus, the skeptics remain unconvinced and many of the world's governments still appear reluctant to do much about it. Is there enough will to slow global warming, and, is there enough time? "Cooling a Warming World" next, On The Line. GUESTS Dr. Kevin Trenberth: Distinguished Senior Scientist, National Center for Atmospheric Research. Dr. Joe Casola: Staff Scientist & Program Director, Center for Climate and Energy Solutions.