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How the human life span doubled in 100 years
www.nytimes.com

How the human life span doubled in 100 years

Between 1920 and 2020, the average human life span doubled. How did we do it? Science mattered — but so did activism.
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Colonists brought death, disease and climate change to the Americas, study finds
www.nytimes.com

Colonists brought death, disease and climate change to the Americas, study finds

Researchers argue that the decimation of indigenous populations set off a chain of events that contributed to a period of global cooling.
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