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Montevideo, September 21st 2018 - 18:02 UTC

Tag: ozone

  • Monday, January 29th 2018 - 10:22 UTC

    Ozone hole: NASA's satellite confirms 20% less depletion; recovery by 2080

    Antarctic ozone hole forms during September in the South Hemisphere winter as returning sun’s rays catalyze ozone destruction cycles of chlorine and bromine

    Scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining. Measurements show that the decline in chlorine, resulting from an international ban on chlorine-containing man-made chemicals called chlorofluorocarbons (CFCs), has resulted in about 20% 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.