Mark Sagoff is Interim Director and Senior Research Scholar at the Institute for Philosophy and Public Policy in the School of Public Policy at the University of Maryland, College Park. The author of Price, Principle and the Environment (2004), he has published widely in journals of law, philosophy, and the environment. Dr Sagoff was named a Pew Scholar in Conservation and the Environment in 1991 and was a fellow at the Woodrow Wilson International Center for Scholars in 1998. He is also a fellow of the Hastings Center and of the American Association for the Advancement of Science.