Bill McKibben wrote the first book for a general audience on global warming in 1989. A scholar in residence at Middlebury College, he has written a dozen more books, and leads the organization of global climate change protests.
Bjorn Lomborg, author of "The Skeptical Environmentalist," is an adjunct professor at the Copenhagen Business School and the organizer of the Copenhagen Consensus Center, which brings together some of the world's top economists, to set priorities for the world.
Carter S. Roberts is president and CEO of the World Wildlife Fund, who also serves on the boards of the Grantham Institute for Climate Change, InterAction and the Nicholas Institute for Environmental Policy at Duke University.
David Hone is the climate change adviser for the Shell Group and vice chairman of the International Emissions Trading Association. He also works closely with the World Business Council for Sustainable Development.
Donald F. Boesch, an oceanographer, is president of the University of Maryland Center for Environmental Science and Vice Chancellor for Environmental Sustainability for the University System of Maryland.
Ian Bowles is the Massachusetts secretary of energy and environmental affairs. Previously, he served as associate director of the White House Council on Environmental Quality during the Clinton administration.
Lars G. Josefsson is president and CEO of Vattenfall, Europe's fifth largest generator of electricity and the largest generator of heat with operations in Denmark, Finland, Germany, United Kingdom, Poland, Netherlands and Sweden. He is also a member of the UN Secretary-General's Advisory Group on Energy and Climate Change.
Mike Tidwell is founder and director of the Chesapeake Climate Action Network, a grassroots non-profit dedicated to raising awareness about the impacts and solutions associated with global warming in Maryland, Virginia and D.C.
Pam Faggert is vice president and chief environmental officer for Richmond, Va.-based Dominion, one of the nation’s largest energy companies. She previously was director for Air Division of the Virginia Department of Environmental Quality.
Reid Detchon is vice president for energy and climate at the United Nations Foundation. He also serves as executive director of the Energy Future Coalition, a broad-based non-partisan public policy initiative focused on oil dependence, climate change, and global energy poverty.
Rick Edmund is a United Methodist church pastor in Maryland. He resides on Smith Island, which has been impacted by rising sea-level and in 2007 testified before the U.S. Senate Committee on the Environment about climate change and the Chesapeake Bay.
Ted Nordhaus and Michael Shellenberger are co-founders of the Breakthrough Institute and co-authors of "Break Through: From the Death of Environmentalism to the Politics of Possibility.” They were named Time Magazine “Heroes of the Environment, 2008.”