1. Yale School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511;
2. Department of Earth System Science, University of California, Irvine, California 92697
3. Department of Political Science and Program in Environmental Studies, University of Oregon, Eugene, Oregon 97403
4. New Century College, George Mason University, Fairfax, Virginia 22030
5. Center for Climate Change and Sustainable Energy Policy, Central European University, 1051 Budapest, Hungary