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Ozone-UV Bulletin
July 14 , 2023
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- The bulletin with the updated status of the ozone layer by World Meteorological Organization - Global Atmosphere Watch bulletin released after a gap of seven years.
- The ozone layer protects life on Earth from harmful solar ultraviolet (UV) radiation.
- Depletion of the ozone layer was first observed in the 1980s.
- To end this, the Montreal Protocol of 1987 has banned the production and consumption of ozone-depleting substances.
- As of today, 99 per cent of their production and use has been phased out.
- In 2022, higher than normal ozone columns were observed in the tropics and subtropics and lower than normal ozone columns at higher latitudes.
- Climate change is slowing down the recovery of the ozone layer.
- In 2022, the Antarctic ozone hole had a relatively late onset in September and a relatively large extent and depth in October and November.
- Hunga Tonga-Hunga Ha'apai volcanic eruption — the largest in 100 years — increased the water vapour content of the stratosphere by 5-10 per cent.
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