Climate Change, What Everyone Needs to O

CNN's John Sutter speaks with climate change expert and author of a new book, Michael Mann. Mann: My thesis was an analysis of data from the greenland sea. Wasn't on climate change all, but the thesis itself was an analysisof data from thegreenland sea. And you know, just being at scripts and attending semonars by some of the wold great stocenographers,. couldn't help but also learn at the time that this was the mid 19 eighties, before a lot of people were talking about climate change. So that was, that was a true education, right? Right?