Solidot: 南极臭氧层空洞十年来最小

Solidot

奇客的资讯，重要的东西

南极臭氧层空洞十年来最小
http://solidot.org.feedsportal.com/c/33236/f/556826/s/2872054a/l/0L0Ssolidot0Borg0Cstory0Dsid0F33438/story01.htm
Feb 11th 2013, 14:00

根据欧洲航天局MetOp气象卫星的观测数据，2012年南极上空的臭氧层空洞大小是过去十年中最小的。臭氧层对人类至关重要，它可以阻挡对生物有害的紫外线进入大气层。臭氧层空洞的增大被认为与空调等使用的氟利昂（CFC）有关，1989年1月1日生效的蒙特利尔议定书对氟氯碳化物的生产做了严格的管制规定。但臭氧层空洞缩小是否是因为氟利昂浓度减少导致并无定论，因为臭氧层空洞缩小和扩大与大气温度关系密切。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: Eyes Like Blank Discs - The Guardian's Steven Poole On George Orwell's Politics And The English Language.



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