Ozone-Depleting Substances (ODSs) and other gases of interest to the Montreal Protocol

Abstract : Changes in the global atmospheric abundance of a substance are determined by the balance between its emissionand removal. Declines observed for ozone-depleting substances (ODSs) controlled under the Montreal Protocol are due to global emission reductions that have made emissions smaller than removals. Mot ODSs are potent greenhouse gases. As the majority of ODSs have been phased out, demand for hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) substitutes for the substances controlled under the Montreal Protocol have increased; these are also greenhouse gases. HCFCs deplete much less ozone per kilogram emitted than chlorofluorocarbons (CFCs), while HFCs essentially deplete no ozone.
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Submitted on : Thursday, March 12, 2015 - 1:15:38 PM
Last modification on : Sunday, July 21, 2019 - 6:40:50 AM

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  • HAL Id : hal-01130807, version 1

Citation

Lucy J. Carpenter, Stefan Reismann, James B. Burkholder, Cathy Clerbaux, Bradley D. Hall, et al.. Ozone-Depleting Substances (ODSs) and other gases of interest to the Montreal Protocol. Scientific Assessment Ozone Depletion : 2014. Global Ozone Research and monitoring Project - Report N° 55, World Meteorological Organization (WMO), Chapitre 1 : (105 p.), 2014, ⟨http://www.esrl.noaa.gov/csd/assessments/ozone/2014/report.html⟩. ⟨hal-01130807⟩

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