"Peter Kareiva had come to answer for his truths. Settling at the head of a long table ringed by young researchers new to the policy world, Kareiva, chief scientist of the Nature Conservancy, the world's largest environmental organization, cracked open a beer. After a long day mentoring at the group's headquarters, an eight-story box nestled in the Washington, D.C., suburbs, he was ready for some sparring."
"The scientists had read Kareiva's recent essay, which takes environmentalists to task. The data couldn't bear out their piety, he wrote. Nature is often resilient, not fragile. There is no wilderness unspoiled by man. Thoreau was a townie. Conservation, by many measures, is failing. If it is to survive, it has to change."