George Masters Woodwell (October 23, 1928 – June 18, 2024) was an American ecologist. He founded several programs in ecology, first at Brookhaven National Laboratory then at the Marine Biological Laboratory in Woods Hole, Massachusetts, and then at the Woods Hole Research Center, now known as Woodwell Climate Research Center, which he founded in 1985.
He is best known for his work on the effects of ionizing radiation on forest ecosystems, his work to have the pesticide DDT banned from use in the United States, and his work to call attention to the threat of climate change as a result of combustion of fossil fuels. Woodwell was one of the first scientists to sound the alarm about climate change, testifying before Congress about climate change impacts in 1986.
He was a founding board member of the Environmental Defense Fund and the Natural Resources Defense Council.