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NASA Study: First Direct Proof of Ozone Hole Recovery Due to Chemicals Ban

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  • NASA Study: First Direct Proof of Ozone Hole Recovery Due to Chemicals Ban

    NASA Study: First Direct Proof of Ozone Hole Recovery Due to Chemicals Ban

    For the first time, scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion.

    Measurements show that the decline in chlorine, resulting from an international ban on chlorine-containing manmade chemicals called chlorofluorocarbons (CFCs), has resulted in about 20 percent less ozone depletion during the Antarctic winter than there was in 2005 — the first year that measurements of chlorine and ozone during the Antarctic winter were made by NASA’s Aura satellite.

    “We see very clearly that chlorine from CFCs is going down in the ozone hole, and that less ozone depletion is occurring because of it,” said lead author Susan Strahan, an atmospheric scientist from NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
    https://www.nasa.gov/feature/goddard...-chemicals-ban

    Interesting read on the long term effects of regulatory actions on CFCs from the 80's. Looks like progress is being made.

  • #2
    It would be a big problem it was the Arctic - but no one cares if bottom half gets fried

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    • #3
      cue up Mordoror in 6, .....5,........4......3......2..... on heck it is the weekend,....may not be here until Monday.

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      • #4
        The use of Preparation O has relieved the inflammation of the O hole.

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