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Date: 2015-02-19 07:51:00Refrigerants Greenhouse gases Earth Heating ventilating and air conditioning Chlorofluorocarbons Montreal Protocol Ozone layer 1 1 2-Trichloro-1 2 2-trifluoroethane Scientific Assessment of Ozone Depletion Ozone depletion Environment Chemistry | Newly detected ozone-depleting substances in the atmosphereAdd to Reading ListSource URL: ozone.unep.orgDownload Document from Source WebsiteFile Size: 535,66 KBShare Document on Facebook |