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  2. Ozone layer - Wikipedia

    en.wikipedia.org/wiki/Ozone_layer

    The ozone layer visible from space at Earth's horizon as a blue band of afterglow within the bottom of the large bright blue band that is the stratosphere, with a silhouette of a cumulonimbus in the orange afterglow of the troposphere. The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet ...

  3. International Day for the Preservation of the Ozone Layer

    en.wikipedia.org/wiki/International_Day_for_the...

    In 1994, the UN General Assembly proclaimed 16 September the International Day for the Preservation of the Ozone Layer, commemorating the date of the signing, in 1987, of the Montreal Protocol on Substances that Deplete the Ozone Layer. [3] The closure of the hole in the ozone layer was observed 30 years after the protocol was signed. [4]

  4. Ozone depletion - Wikipedia

    en.wikipedia.org/wiki/Ozone_depletion

    Since the ozone layer absorbs UVB ultraviolet light from the sun, ozone layer depletion increases surface UVB levels (all else equal), which could lead to damage, including an increase in skin cancer. This was the reason for the Montreal Protocol.

  5. UN says ozone layer slowly healing, hole to mend by 2066

    www.aol.com/news/un-says-ozone-layer-slowly...

    Earth’s protective ozone layer is slowly but noticeably healing at a pace that would fully mend the hole over Antarctica in about 43 years, a new United Nations report says. A once-every-four ...

  6. Montreal Protocol - Wikipedia

    en.wikipedia.org/wiki/Montreal_Protocol

    The largest Antarctic ozone hole recorded (September 2006) 2012 retrospective video by NASA on the Montreal Protocol The Montreal Protocol on Substances That Deplete the Ozone Layer [2] is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.

  7. Dobson unit - Wikipedia

    en.wikipedia.org/wiki/Dobson_unit

    The Dobson unit (DU) is a unit of measurement of the amount of a trace gas in a vertical column through the Earth's atmosphere.It originated by, and continues to be primarily used in respect to, the study of atmospheric ozone, whose total column amount, usually termed "total ozone", and sometimes "column abundance", is dominated by the high concentrations of ozone in the stratospheric ozone layer.

  8. Ozone layer on road to recovery despite volcano eruption, UN ...

    www.aol.com/news/ozone-layer-road-recovery...

    The world's ozone layer is on "the road to long-term recovery" despite a destructive volcanic eruption in the South Pacific, the World Meteorological Organization said on Tuesday, after efforts to ...

  9. Hole in the Earth's ozone layer Is finally closing up, NASA says

    www.aol.com/article/2015/05/15/hole-in-the...

    The Weather Channel A hole in our atmosphere more than twice the size of the United States is finally beginning to close up, and might even be completely gone by the end of the century, according ...