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ScienceCasts: Mystery in the Ozone Layer

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  • 6 years ago
  • 55,437 views
  • 449 likes
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Visit http://science.nasa.gov/ for more.

Almost 30 years after the Montreal Protocol put the brakes on ozone-depleting chemicals, one compound remains stubbornly and mysteriously abundant in the atmosphere. NASA scientists are tracking down the source and studying its effect on the ozone layer.
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