David Pimentel is a professor of ecology and agricultural sciences at Cornell University. His research spans the fields of energy, biotechnology, sustainable and international agriculture, land and water conservation, ecological and economic aspects of pest control, and environmental policy. He has published hundreds of scientific papers and 26 books and has served on committees for many national and governmental organizations, including the National Academy of Sciences, the President’s Science Advisory Council, the U.S. Departments of State, Energy, Agriculture, and Health, Education and Welfare, and the Office of Technology Assessment of the U.S. Congress.