Dennis Tirpak

Senior Fellow
World Resources Institute

Dennis Tirpak has worked in the field of climate change, in the U.S. and internationally, since 1985. He advises national governments, international organizations and industry on climate change issues, with clients including the governments of Korea, Indonesia, Canada, the European Commission, and others. He currently serves as a senior fellow at the World Resources Institute in Washington, D.C., and an associate at the International Institute of Sustainable Development in Canada. Tirpak’s previous positions include director of the Global Change Policy Division at the U.S. Environmental Protection Agency, coordinator of Science and Technology at the United Nations Secretariat for the Framework Convention on Climate Change (UNFCCC), and head of the climate change unit at the Organisation for Economic Cooperation and Development. He was a coordinating lead author for Working Group 3 of the Nobel Prize winning Intergovernmental Panel on Climate Change AR4 and AR1. He has also held positions with Texaco, Alcoa, and BDM Corporation. Tirpak’s awards include an EPA Gold Medal, a U.S. Government Senior Executive Service Award, and a President’s Commission on Personnel Interchange Award.