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Date: 2006-08-16 04:02:19Atmospheric sciences Scientific Assessment of Ozone Depletion Ozone layer Montreal Protocol Ozone Equivalent effective stratospheric chlorine Chlorofluorocarbon 1 1 2-Trichloro-1 2 2-trifluoroethane Polar stratospheric cloud Ozone depletion Environment Earth | Add to Reading ListSource URL: ozone.unep.orgDownload Document from Source WebsiteFile Size: 846,19 KBShare Document on Facebook |