William R. Lowry is a professor of political science at Washington University in St. Louis and one of the foremost scholars of U.S. environmental and natural resource policy. He is the author of Dam Politics: Restoring America's Rivers (Georgetown University Press, 2003), Preserving Public Lands for the Future: The Politics of Intergenerational Goods(Georgetown, 1998), and The Capacity for Wonder: Preserving National Parks (Brookings, 1994).