We sometimes think of environmental pollution as a modern scourge, but recent research shows th... ...years, those dates coincide with a sudden drop in lead in the air. Lead pollution is typically considered a hallmark of industrial... ...ng and smelting activity has tai...http://www.neatorama.com/2017/07/08/The-Black-Death-May-Have-Had-a-Surprising-Effect-on-the-Environment/
The Black Death May Have Had a Surprising Effect on the Environment...
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