Bill McKibben co-founded 350.org nearly 20 years ago to raise awareness about climate. He has written 20 books and earned over 20 honorary doctorates from colleagues and universities. He also is a recipient of the Right Livelihood Award, considered the alternative Nobel Peace Prize, and the Gandhi Peace Prize. This conversation begins with a discussion of his most recent book, Here Comes the Sun. He emphasizes that the time has come for solar to power our global society.