[diskopanzer]

What is Bill McKibben's academic background to be considered an expert? According to Wikipedia, he has written a few books but has otherwise only been active as an activist. The foundation seems a bit thin to me, but I'm happy to be convinced otherwise.

[cjbenedikt]

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