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A fly in the ozone and climate ointment

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The Montreal Protocol has successfully guided the world’s transition from chlorofluorcarbons that deplete ozone to hydrofluorocarbons that pose no direct threat to the ozone layer. A study suggests that a recent rise in atmospheric chlorofluorcarbons is linked to the inadvertent release of these gases during the production of hydrofluorocarbons.

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Fig. 1: Ozone and climate impacts of the five CFCs measured by Western et al.2.

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Authors and Affiliations

  1. Department of Atmospheric and Oceanic Science, University of Maryland, College Park, Maryland, USA

    Ross J. Salawitch

  2. Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA

    Ross J. Salawitch

  3. Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland, USA

    Ross J. Salawitch

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  1. Ross J. Salawitch
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Correspondence to Ross J. Salawitch.

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Salawitch, R.J. A fly in the ozone and climate ointment. Nat. Geosci. 16, 278–279 (2023). https://doi.org/10.1038/s41561-023-01165-8

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