Roosevelt is Chair of the Center for Climate and Energy Solutions, a Trustee of the Alliance for Climate Protection, a member of the Governing Council of The Wilderness Society (United States), and a Trustee for the American Museum of Natural History, the World Resources Institute, and The Cultural Institutions Retirement System. He is also a Counselor for the China–U.S. Center for Sustainable Development. He sits on the Advisory Council of the nonpartisan anti-corruption organization Represent.Us, where he served as a consultant in the crafting of the American Anti-Corruption Act.