An activist, author, scholar and galvanizing character, Bill McKibben has been working toward a healthier ecosystem and against climate change since the 1980’s. His first book “The End of Nature” came out in 1989, he’s written for all the big periodicals, has been a co-founder of large scale movements (including 350.org), published many books, protested, marched, campaigned, and received many honors along the way for doing so.