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A decrease in radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons

Author

Listed:
  • Luke M. Western

    (University of Bristol
    NOAA Global Monitoring Laboratory)

  • John S. Daniel

    (NOAA Chemical Sciences Laboratory)

  • Martin K. Vollmer

    (Laboratory for Air Pollution/Environmental Technology)

  • Scott Clingan

    (NOAA Global Monitoring Laboratory
    University of Colorado)

  • Molly Crotwell

    (NOAA Global Monitoring Laboratory
    University of Colorado)

  • Paul J. Fraser

    (CSIRO Environment)

  • Anita L. Ganesan

    (University of Bristol
    Massachusetts Institute of Technology)

  • Brad Hall

    (NOAA Global Monitoring Laboratory)

  • Christina M. Harth

    (University of California San Diego)

  • Paul B. Krummel

    (CSIRO Environment)

  • Jens Mühle

    (University of California San Diego)

  • Simon O’Doherty

    (University of Bristol)

  • Peter K. Salameh

    (GC Soft Inc.)

  • Kieran M. Stanley

    (University of Bristol)

  • Stefan Reimann

    (Laboratory for Air Pollution/Environmental Technology)

  • Isaac Vimont

    (NOAA Global Monitoring Laboratory)

  • Dickon Young

    (University of Bristol)

  • Matt Rigby

    (University of Bristol
    Massachusetts Institute of Technology)

  • Ray F. Weiss

    (University of California San Diego)

  • Ronald G. Prinn

    (Massachusetts Institute of Technology)

  • Stephen A. Montzka

    (NOAA Global Monitoring Laboratory)

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.

Suggested Citation

  • 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’Dohe, 2024. "A decrease in radiative forcing and equivalent effective chlorine from hydrochlorofluorocarbons," Nature Climate Change, Nature, vol. 14(8), pages 805-807, August.
    • Handle: RePEc:nat:natcli:v:14:y:2024:i:8:d:10.1038_s41558-024-02038-7
    DOI: 10.1038/s41558-024-02038-7
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