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Irreversible climate 'tipping points' loom in coming decades

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Humans are on track to trigger multiple irreversible climate "tipping points" in the coming decades, according to a new study.

If global warming reaches 1.5 degrees Celsius, ice sheets at both poles could experience runaway melting. Some coral reefs would also permanently die at that temperature, the study finds.

NPR's Rebecca Hersher reports.

This segment aired on September 13, 2022.

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