John Roemer is the Elizabeth S. and A. Varick Stout Professor of Political Science and Economics at Yale University. His research concerns political economy and distributive justice. Professor Roemer is a fellow of the Econometric Society, a past Guggenheim fellow and Russell Sage fellow, a fellow of the American Academy of Arts and Sciences, and a corresponding fellow of the British Academy. He has published many articles and books in economics, political philosophy and political theory, including a number of publications including Political Competition, Equality of Opportunity, Theories of Distributive Justice, and A General Theory of Exploitation and Class. Today we talk with him about a book he has recently written in collaboration with Humberto Llavador and Joaquim Silvestre titled Sustainability for a Warming Planet.