Climate Change - A Book Review

Gurnot Wagner: What we know is bad enough to lead us to want to act. He says what we don't know is potentially much, much worse. The range of numbers that basically defines life on Earth or will define life on Earth very, very soon are 1.5 to 4.5 degrees centigrade. We happen to live in a world where a range like this will defineLife on Earth and we're in about 35 years, we have learned very, very little.