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Earth Scientists

8 people, across 2 fields.

James Hansen b. 1941Science & MathematicsThe NASA climate scientist who told the Senate in 1988 that global warming had begunJohn Wesley Powell 1834–1902Exploration, Aviation & SpaceGeologist and explorer who led the first documented passage through the Grand Canyon.Charles Richter 1900–1985Science & MathematicsCreator of the earthquake magnitude scaleCharles David Keeling 1928–2005Science & MathematicsMeasured atmospheric carbon dioxide at Mauna Loa from 1958 until his death, producing the Keeling Curve.Marie Tharp 1920–2006Science & MathematicsMapped the ocean floor by hand and found the Mid-Atlantic rift valleyRoger Revelle 1909–1991Science & MathematicsOceanographer and early scientist of human-caused global warmingSylvia Earle b. 1935Exploration, Aviation & SpaceMarine biologist and oceanographer known as Her Deepness for her record-breaking underwater explorations.Harrison Schmitt b. 1935Exploration, Aviation & SpaceApollo 17 lunar module pilot and only professional scientist to walk on the Moon.