Dan Esty is Hillhouse Professor of Environmental Law and Policy at Yale University with faculty appointments in both Yale's Environment and Law Schools. He is Director of the Center for Business and Environment at Yale (www.yale.edu/cbey ) and the Yale Center for Environmental Law and Policy (www.yale.edu/envirocenter ). Formerly a senior official at the U.S. Environmental Protection Agency, Dan is one of the world's leading experts on corporate environmental strategy. He and his consulting group, Esty Environmental Partners (www.EstyEP.com), have advised CEOs and top executives from Dow, Hanes, Honeywell, Ikea, Kerr-McGee, Limited Brands, Nokia, Northeast Utilities, Shell, and more than a dozen other companies in the United States, Europe, and Asia. Dan is the author or editor of nine books and numerous articles on environmental policy issues and the relationships between the environment and trade, competitiveness, governance, development, and environmental performance. His recent prizewinning book, Green to Gold: How Smart Companies Use Environmental Strategy to Innovate, Create Value, and Build Competitive Advantage, explains why environmental thinking has become a core element of business strategy and how corporate environmental efforts can generate significant market opportunities.