Former Co-Chair: President's Council on Sustainable Development; Advisory Group on the Environment, Organization for Economic Cooperation and Development. Member of the Board: Institute for Sustainable Communities; Wallace Global Fund. Former: Volunteer, Peace Corps, Dominican Republic; Senior Staff Attorney, Natural Resources Defense Council; Head, Vermont Agency of Natural Resources; Commissioner of Environmental Conservation, Vermont; Director, Environmental Law Center, Vermont Law School; Chair, National Commission on Superfund. Currently, President, World Resources Institute.