Earth Day

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Earth Day at the Shack

Three springs ago I visited the Leopold Memorial Reserve—the depleted Wisconsin sand county farm Aldo Leopold bought in 1930 known as the “shack.” In the 1940s he recorded in his field notes that without large predators such as wolves to regulate their numbers, deer were eating aspens and other trees and shrubs to death. I wanted to see whether this was still so.

Comments on Population on Earth Day

NEW ORLEANS—People walking around the Sheraton Hotel here are talking about population as if it were the most natural conversation in the world. The topic interests me, so I join in. As it happens, I’ve written a book on it, just published by Island Press, which I don’t shrink from mentioning. Just being here, though, reminds me that human numbers aren’t often talked about outside this hotel.

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