Bill Becker is executive director of the Presidential Climate Action Project, a nonpartisan effort housed at the Wirth Chair in the School of Public Affairs at the University of Colorado Denver

Chris Bolgiano is the author of Living In The Appalachian Forest: True Tales of Sustainable Forestry, which won a Southern Environmental Law Center Writing Award, as well as four other books.

Peter A. Bradford is a former commissioner of the U.S. Nuclear Regulatory Commission and chair of the New York and Maine utility regulatory commissions.

Richard Cizik is the Vice President for Governmental Affairs at the National Association of Evangelicals. He regularly lobbies the White House and Congress, and is outspoken on biblically-based environmentalism called “creation care.”

Osha Gray Davidson is the author of five works of non-fiction. Republicans in the Wilderness: The GOP & Environmental Politics from TR to Tomorrow will be published by Public Affairs Press in 2009.

Ross Gelbspan was a longtime reporter and editor at the Philadelphia Bulletin, the Washington Post, and the Boston Globe (where he earned a Pulitzer Prize). He has most recently authored two books on global warming The Heat is On and Boiling Point.

Erica Gies is a freelance reporter published by the International Herald Tribune, Wired News, Grist, E/The Environmental Magazine, and The San Francisco Bay Guardian.

Sharon Guynup is a freelance science and environmental writer whose pieces have appeared in Popular Science, nationalgeographic.com, The New York Times Syndicate, Sierra, Wildlife Conservation, and Audubon. She launched a new book series for the Wildlife Conservation Society with State of the Wild 2006: A Global Portrait of Wildlife, Wildlands, and Oceans. She has also produced special issues for Scientific American.

Mark Hertsgaard Noted journalist, author and broadcaster whose writing has appeared in The New Yorker, The New York Times, The Washington Post, Time, Newsweek, Vanity Fair, The Atlantic, Harper’s, The Nation, Salon and many overseas publications, His books on the environment include Earth Odyssey and Nuclear Inc.: The Men and Money behind Nuclear Energy.

Sheril Kirshenbaum is an associate at Duke University and co-author of the forthcoming book, Unscientific America: How Scientific Illiteracy Threatens Our Future (Basic Books, 2009)

Bill McKibben A former staff writer for The New Yorker, McKibben is a frequent contributor to a The New York Times, The Atlantic Monthly, Harper’s, Orion Magazine, Mother Jones, The New York Review of Books, and Outside. His groundbreaking environmental books include The End of Nature, The Age of Missing Information, Hope, Human and Wild, Enough, and Deep Economy.

Chris Mooney A journalist who focuses on science in politics. He is Washington correspondent for Seed, a senior correspondent for The American Prospect and a contributor to many scientific and newsmagazines. He is author of The Republican War on Science and Storm World, Hurricanes, Politics, and the Battle Over Global Warming.

Jim Motavalli Editor of E: The Environment Magazine, the only independent national environmental bi-monthly. He is the author of Breaking the Gridlock: Moving Toward Transportation That Works and Forward Drive: The Race to Build Clean Cars for the Future. His writing has appeared in The New York Times, The Hartford Courant, Salon, The Guardian, Sierra, The San Jose Mercury-News, and The Stamford Advocate.

Kim O’Connell An Arlington, Virginia-based writer who has had her work about recycling and the environment published in E/The Environmental Magazine, Waste Age, Landscape Architecture, and other publications.

David Pimentel is a professor of entomology at the College of Agriculture and Life Sciences at Cornell University.

Joe Roman is a visiting fellow at the Gund Institute for Ecological Economics at the University of Vermont and author of Whale (Reaktion, 2006)

Bill Schneider Writer, publisher Bill Schneider writes a weekly column called Wild Bill for NewWest.Net, an online magazine.

Philip Shabecoff Former chief environmental correspondent for the New York Times; founder and former publisher of Greenwire, the electronically distributed environmental news daily. He is the author of Earth Rising: American Environmentalism in the 21st Century, and A Fierce Green Fire: The American Environmental Movement.

Jeff South A reporter and editor for newspapers in Arizona, Texas, and Virginia. Now an associate professor at the School of Mass Communications at Virginia Commonwealth University, he teaches legislative reporting, environmental journalism, and other subjects.
Stewart Udall was U.S. Secretary of the Interior, 1961–1969, and represented Arizona’s 2nd Congressional District in the U.S. House of Representatives, 1955–1961.

Ted Williams Has been covering the environment and the sporting life for more than a quarter of a century for publications as diverse as Audubon, Fly Rod & Reel, and Gray’s Sporting Journal.