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Aldo Leopold, American ecologist and author (died 1948)

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Aldo Leopold
American conservationist (1887–1948)
Aldo Leopold was an American writer, philosopher, naturalist, scientist, ecologist, forester, conservationist, and environmentalist. He was a professor at the University of Wisconsin and is best known for his book A Sand County Almanac (1949), which has been translated into…Source: Wikipedia (CC BY-SA)