Anthropogenic lead pollution
On March 27th, 1961, Claire Patterson submitted his paper on ‘The occurrence and significance of lead isotopes in pelagic sediments’, in which he first showed his concern about anthropogenic lead pollution. It took him over ten years to convince the EPA that leaded gasoline was a threat to the world
Source: Tsaihwa J. Chow, C.C. Patterson, The occurrence and significance of lead isotopes in pelagic sediments, Geochimica et Cosmochimica Acta, Volume 26, Issue 2, 1962, Pages 263-308,
Image by Joe Mabel under CC BY-SA 3.0 license
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Full disclosure, I may occasionally borrow a sentence from Will Durant's Story of Civilization. I absolutely love that collection!