A decrease in radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons

Luke M. Western

doi:10.1038/s41558-024-02038-7

2024-06-11

DOI：10.1038/s41558-024-02038-7

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The Montreal Protocol and its successive amendments have been successful in curbing emissions of ozone-depleting substances and potent greenhouse gases via production/consumption controls. Here we show that the radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons has decreased from 61.75 mW m- 2 and 321.69 ppt, respectively, since 2021, 5 years before the most recent projected decrease. This important milestone demonstrates the benefits of the Protocol for mitigating climate change and stratospheric ozone layer loss. Hydrochlorofluorocarbons are important ozone-depleting substances. Here the authors show that the radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons has decreased in recent years, 5 years earlier than expected.

Keyword:

GLOBAL EMISSIONS

CHLOROFLUOROCARBONS

INCREASE

TRENDS

CFCS

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Nature Climate Change

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27.1

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4.4K

被引数:

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University of Colorado System

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Scripps Institution of Oceanography

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swiss federal institutes of technology domain

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commonwealth scientific & industrial research organisation (csiro)

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swiss federal laboratories for materials science & technology (empa)

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University of California System

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University of California San Diego

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University of Bristol

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