人類“補天”40年 南極臭氧層有望2060年恢復(fù)
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1985年??(nian)3月??(yue)22日??(ri)??,《保??(bao)護(hù)??(hu)臭??(chou)氧??(yang)層??(ceng)維??(wei)也??(ye)納??(na)公?(gong)約??(yue)》(簡?(jian)稱??(cheng)“公??(gong)約??(yue)”)締??(di)結(jié)??(jie)??,開??(kai)啟??(qi)了?(le)全??(quan)球?(qiu)性??(xing)的?(de)“補??(bu)天??(tian)”行?(xing)動??(dong)??。??DPNNXDBVDHqibao666888 1985nian ??(nian)3yue ??(yue)22ri ??(ri)??,《bao ??(bao)hu ??(hu)chou ??(chou)yang ??(yang)ceng ??(ceng)wei ??(wei)ye ??(ye)na ??(na)gong ?(gong)yue ??(yue)》(jian ?(jian)cheng ??(cheng)“gong ??(gong)yue ??(yue)”)di ??(di)jie ??(jie)??,kai ??(kai)qi ??(qi)le ?(le)quan ??(quan)qiu ?(qiu)xing ??(xing)de ?(de)“bu ??(bu)tian ??(tian)”xing ?(xing)dong ??(dong)??。??
發(fā)布于:北京市