A decrease in radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons

IF 29.6 1区地球科学 Q1 ENVIRONMENTAL SCIENCES

Nature Climate Change Pub Date : 2024-06-11 DOI:10.1038/s41558-024-02038-7

Luke M. Western, John S. Daniel, Martin K. Vollmer, Scott Clingan, Molly Crotwell, Paul J. Fraser, Anita L. Ganesan, Brad Hall, Christina M. Harth, Paul B. Krummel, Jens Mühle, Simon O’Doherty, Peter K. Salameh, Kieran M. Stanley, Stefan Reimann, Isaac Vimont, Dickon Young, Matt Rigby, Ray F. Weiss, Ronald G. Prinn, Stephen A. Montzka

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Abstract

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.

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氟氯烃产生的辐射强迫和等效有效氯的减少

蒙特利尔议定书》及其历次修正案成功地通过生产/消费控制遏制了臭氧消耗物质和强效温室气体的排放。我们在此表明，自 2021 年以来，氯氟烃的辐射强迫和等效有效氯已分别从 61.75 mW m-2 和 321.69 ppt 下降，比最新预测的降幅早了 5 年。这一重要的里程碑显示了《议定书》在减缓气候变化和平流层臭氧层丧失方面的惠益。

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来源期刊

Nature Climate Change ENVIRONMENTAL SCIENCES-METEOROLOGY & ATMOSPHERIC SCIENCES

CiteScore

40.30

自引率

1.60%

发文量

267

审稿时长

4-8 weeks

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