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Date of Publication: April 3
Year of Publication: 2023
Publisher: Springer Nature
Author(s): Katherine Bourzac
Researchers have detected increased emissions for five ozone-depleting chlorofluorocarbons.
The Montreal Protocol, which banned most uses of ozone-destroying chemicals known as chlorofluorocarbons (CFCs) and called for their global phase-out by 2010, has been a great success story: Earth’s ozone layer is projected to recover by the 2060s.
So atmospheric chemists were surprised to see a troubling signal in recent data. They found that the levels of five CFCs rose rapidly in the atmosphere from 2010 to 2020. Their results are published today in Nature Geoscience1.
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