Instead of focusing on Bill McKibben perhaps you should focus on Michael E.Mann? He def. knows what he is talking about https://en.wikipedia.org/wiki/Michael_E.

Instead of focusing on Bill McKibben perhaps you should focus on Michael E.Mann? He def. knows what he is talking about https://en.wikipedia.org/wiki/Michael_E._Mann https://en.wikipedia.org/wiki/Michael_E._Mann