Bill Bumpers is an environmental partner in the Washington, D.C., office and heads the firm's global climate change practice group. Mr. Bumpers focuses on the Clean Air Act and climate change issues. He has an active environmental regulatory, litigation, and transactional practice, representing petroleum refineries, investment companies, electric generators, and pharmaceutical and chemical manufacturers. He is regarded as a national authority on new source review issues affecting the electric generation and petroleum refinery industries. He previously served on the EPA's New Source Review Reform Subcommittee of the Clean Air Act Advisory Committee. Mr. Bumpers also is a leading authority on climate change issues, including carbon trading mechanisms in the United States and internationally pursuant to the Kyoto Protocol. He has been involved with climate change issues since his work on energy policy and climate change as a graduate student in 1977. He served as counsel to the team that performed the feasibility study for the World Bank's Prototype Carbon Fund. He also represented the International Finance Corporation on its carbon purchase program on behalf of the Netherlands. More recently he has been involved in structuring Clean Development Mechanism (CDM) projects in Malaysia, China, and Equatorial Guinea, including the negotiation and drafting of contracts for the purchase and sale of CO2 emission reductions. Mr. Bumpers also represents a wide range of companies on developing policy and regulatory issues in the United States and regarding the creation and sale of GHG emission offsets.