CFC phaseouts: an update on the fate of the earth.
D017402:Chlorofluorocarbons / Q000009:adverse effects* / Q000737:chemistry; D003247:Conservation of Natural Resources; D015386:Hazardous Substances / Q000009:adverse effects* / Q000592:standards; D006801:Humans; D007391:International Cooperation; D008284:Maintenance and Engineering, Hospital; D010126:Ozone; D014481:United States