Terry Anderson is president of PERC (the Property and Environment Research Center), a think tank in Bozeman, Montana, that focuses on free-market solutions to environmental problems. His books include Free Market Environmentalism and Greener Than Thou: Are You Really An Environmentalist?. He's also the John and Jean De Nault Senior Fellow at Stanford University's Hoover Institution and professor emeritus of economics at Montana State University. To find out more about free market environmentalism and PERC, visit www.perc.org.