United Nations Scientists: Ozone Layer Is Recovering

The New York Times reports:

The protective ozone layer in the upper atmosphere could be restored within several decades, scientists said Monday, as recent rogue emissions of ozone-depleting chemicals from China have been largely eliminated.

In a United Nations-sponsored assessment, the scientists said that global emissions of CFC-11, a banned chemical that has been used as a refrigerant and in insulating foams, had declined since 2018 after increasing for several years.

The scientists said that if current policies remained in place, ozone levels between the polar regions should reach pre-1980 levels by 2040. Ozone holes should also recover by 2045 in the Arctic and about 2066 in Antarctica.

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