Valerie Thomas is the Anderson Interface Associate Professor of Natural Systems in the School of Industrial and Systems Engineering, with a joint appointment in the School of Public Policy. Her research interests are energy and materials efficiency, sustainability, industrial ecology, technology assessment, international security, and science and technology policy. Current research projects include the environmental impacts of biofuels and electricity system policy and planning. Thomas received a B. A. in physics from Swarthmore College and a Ph.D. in theoretical physics from Cornell University. From 1986 to 1989, she was a post-doctoral Research Fellow at the Department of Engineering and Public Policy at Carnegie Mellon University. From 1989 to 2004, she was a Research Scientist at Princeton University, in the Princeton Environmental Institute and in the Center for Energy and Environmental Studies, and was a Lecturer in the Woodrow Wilson School of Public and International Affairs. In 2004-05, Thomas was the American Physical Society Congressional Science Fellow. Thomas was a Member of the U.S. EPA Science Advisory Board from 2003 to 2009, and is a Fellow of the American Association for the Advancement of Science, and of the American Physical Society.