Born: May 28, 1917; Died: September 30, 2012.
Barry Commoner, who has died aged 95, was an American scientist and activist who raised early concerns about the effects of radioactive fallout and was one of the pioneers of the environmental movement.
He was one of the founders of a well-known survey of baby teeth in St Louis, Missouri, that started in the late 1950s. It assessed the levels of strontium-90 in the teeth and showed how children were absorbing radioactive fallout from nuclear bombs that were being tested.
The survey helped to per- suade government officials to partially ban some kinds of nuclear testing.
He took on that role of educating the public, writing books on environmental issues. Among his works were Making Peace with the Planet and Science and Survival.
He made the cover of Time magazine in early 1970 and ran for president as a third-party candidate in 1980.
He founded the Centre for the Biology of Natural Systems at Washington University in St Louis in 1966; he moved it to New York's Queens College in 1981 and headed it until 2000.
Born and raised in Brooklyn, Mr Commoner went to Columbia University, majoring in zoology. He got his doctorate in cellular biology from Harvard University.
He is survived his wife Lisa Feiner, two children from his first marriage, and a grand-daughter.
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