Thirty years ago, BILL McKIBBEN’s THE END of NATURE was the first popular book about climate change. Since then the effects have exceeded our expectations, while our response has lagged what’s needed. Bill has done his part – with books, articles, and as co-founder of the climate movement 350.org, which has held 20,000 rallies in 182 countries and spearheaded the fight against the XL pipeline and the movement to divest from fossil fuel companies. We talk about the latest findings, warnings, and global activism in his new book FALTER: Has the Human Game Begun to Play Itself Out? www.billmckibben.com