Paul Sabin teaches American history at Yale University. He is the author of THE BET: PAUL EHRLICH, JULIAN SIMON AND OUR GAMBLE OVER EARTH'S FUTURE (2013), and CRUDE POLITICS: THE CALIFORNIA OIL MARKET, 1900-1940 (2005). Before joining the Yale faculty, Paul served as founding executive director of the non-profit Environmental Leadership Program. He is a graduate of Yale College and the University of California, Berkeley.