Science News from WN Network
 
Thursday, 21 August 2014
Mysterious source of ozone-depleting chemical baffles NASA
The world agreed to stop using CC14 as part of the Vienna Convention on Protection of the Ozone Layer and its Montreal Protocol, which attained universal ratification in 2009. A chemical used in dry cleaning and fire extinguishers may have been phased out in recent years but NASA said on Wednesday that carbon tetrachloride (CCl4) is still being spewed into the atmosphere from an...
Full Story: Khaleej Times
 


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