chlorofluorocarbon
Scientist find new ozone-destroying gases growing rapidly
Environmental scientists raise concern at rising levels of gases that attack Earth's protective ozone layer, including manmade chemicals not covered by key UN treaty
February 17, 2015
Scientist find new ozone-destroying gases growing rapidly
Environmental scientists raise concern at rising levels of gases that attack Earth's protective ozone layer, including manmade chemicals not covered by key UN treaty
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