Peter C. Frumhoff is director of science and policy at the Union of Concerned Scientists (UCS), and chief scientist of the UCS Climate Campaign. A global change ecologist, he has published and lectured widely on topics that include climate change impacts, climate science and policy, tropical forest conservation and management, and biological diversity. He is a lead author of the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) and was previously a lead author of the IPCC Special Report on Land Use, Land-use Change and Forestry. He is the chair of the Northeast Climate Impacts Assessment (NECIA). Major UCS reports developed under his guidance include Climate Change in California: Choosing Our Future (2004), Confronting Climate Change in the Great Lakes Region (2003), and Logging Off: Mechanisms to Stop or Prevent Industrial Logging in High Conservation Value Forests (2001). Dr. Frumhoff has taught at Fletcher School of Law and Diplomacy at Tufts University, Harvard University, and the University of Maryland. He also served as an AAAS Science and Diplomacy Fellow at the U.S. Agency for International Development, where he designed and led conservation and rural development programs in Latin America and East Africa. He holds a Ph.D. in Ecology and an M.A. in Zoology from the University of California, Davis and a B.A. in Psychology from the University of California, San Diego.