HANSENPerhaps best known for bringing global warming to the world's attention in the 1980s when he first testified before Congress, Dr. James Hansen is considered the world's leading climatologist. The head of NASA's Goddard Institute for Space Studies, heserved as Al Gore's science advisor for An Inconvenient Truth. He teaches at the Department of Earth &Environmental Sciences at Columbia University, lectures at universities and other institutions throughout the world and has been interviewed in the New York Times and other publications. This is his first book. Read More Read Less