The United Nations treaty to protect the ozone layer signed 25 years ago prevented an environmental disaster, a chief U.N. scientist said, cautioning though that the Earth's radiation shield is still under threat.
Source: http://www.cosmosmagazine.com/news/5991/un-hails-25-year-ozone-treaty-preventing-disaster
Alessandra Ambrosio Alexis Bledel Ali Campoverdi Ali Larter Alice Dodd Alicia Keys Alicia Witt Amanda Bynes
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