01/01/2023: Radio Free Europe, Mass Extinction, Obesity
60 Minutes
00:00
The Sixth Mass Extinction
In 1968, biologist Paul Erlich became a doomsday celebrity with a best-seller forecasting the collapse of nature. Today, humans have taken over 70 percent of the planet's land and 70 percent of fresh water. "I don't think you'll find a scientist that will say we're not in an extinction crisis," he says.
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