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NASA warns over mystery of ozone depleting compound

  • Jessica Shankleman
  • Jessica Shankleman
  • @JessicaBG
  • 21 August 2014
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Research identifies unexpectedly high levels of carbon tetrachloride in the atmosphere more than 25 years after Montreal Protocol

NASA scientists say they are baffled by the large amounts of an ozone depleting compound in the atmosphere, more than 25 years after they were banned under the Montreal Protocol. Research by the space...

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