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Rachel Carson

The late Rachel Carson was for many years a marine biologist and then editor-in-chief of the United States Fish and Wildlife Service. She was also the author of Silent Spring , Under the Sea-Wind , and At the Edge of the Sea . Sylvia Earle is a marine biologist, oceanographer, and National Geographic Society Explorer in Residence. Her books include Blue Hope: Exploring and Caring for Earth's Magnificent Ocean and Ocean: An Illustrated Atlas .