Dan Esty is Hillhouse professor of environmental law and policy as a professor at Yale since 1994 he holds faculty appointments in both Yale's environmental and law schools. With a secondary appointment at the Yale school of management. He also directs the Yale center for environmental law and policy. Dan is the author or editor of 12 books including the prize winning book, Green to Gold. How smart companies use environmental strategy to innovate, create value, and build competitive advantage. His latest work, A Better Planet ,was published last fall. The concept of A Better Planet is to bring together the insights of 40 of the biggest and best ideas in sustainability and the environment that are grounded in sound science.