David Stradling is Professor of History at the University of Cincinnati. He is the author of The Nature of New York: An Environmental History of the Empire State and coauthor of Where the River Burned: Carl Stokes and the Struggle to Save Cleveland, both from Cornell. He is also the author of Making Mountains: New York City and the Catskills, and Smokestacks and Progressives: Environmentalists, Engineers, and Air Quality in America, 1881 1951.