KELLY LEVIN is a Ph.D. candidate at the Yale School of Forestry and Environmental Studies dedicating her research to global governance of climate change and biodiversity. As a climate policy and technical analyst for the Northeast States for Coordinated Air Use Management (NESCAUM) Climate and Energy Team, she facilitated the development of a regional greenhouse gas registry for the Northeast and Mid-Atlantic states. She holds a bachelor\'s degree in ecology and evolutionary biology from Yale College and a master of environmental management from Yale\'s School of Forestry and Environmental Studies.

JONATHAN PERSHING is the director of the Climate, Energy, and Pollution Program (CEP) at the World Resources Institute. He is active in work on domestic and international climate and energy policy, including emissions trading, energy technology, and the evolving architecture of international climate agreements. He has served as the head of the Energy and Environment Division at the  International Energy Agency in Paris, deputy director and science advisor for the Office of Global Change at the U.S. Department of State, and a U.S. negotiator for the UN climate change convention and its Kyoto Protocol. Dr. Pershing is the author of several books and numerous articles on climate change, and energy and environmental policy, and holds a doctorate in geology and geophysics from the University of Minnesota.