US EditionOzone Layer on Track to Rebound by Mid-Century, WMO Reports
- On September 16, 2025, the United Nations and the World Meteorological Organization released the Ozone Bulletin 2024, noting that the Antarctic ozone hole was reduced in size compared to previous years.
- This improvement follows decades of international efforts beginning with the 1975 Vienna Convention and the 1987 Montreal Protocol that targeted phasing out ozone-depleting substances widely used in refrigeration and aerosol sprays.
- The bulletin reported that in September 2024, the Antarctic ozone hole developed more slowly and showed delayed depletion, reaching a peak deficit equivalent to 46.1 million tonnes less ozone than the 1990–2020 average, signaling early signs of the ozone layer’s recovery.
- UN Secretary-General Antonio Guterres stated, "The ozone layer is healing today," and WMO Secretary-General Celeste Saulo noted, "This is no coincidence," reflecting the success of global cooperation and scientific guidance.
- If current regulations continue unchanged, the ozone layer is expected to return to its 1980 levels by around 2066 over Antarctica, which could lead to a decrease in UV-related health issues and environmental harm globally.
117 Articles
117 Articles
The ozone hole is getting smaller and smaller – the success of an agreement that was agreed almost 40 years ago.
The ozone hole was smaller last year than in the previous three years and also than the average observed between 1990 and 2020, the World Meteorological Organization announced. It attributed the decrease in part to natural atmospheric phenomena.
Berliner Morgenpost
Decades ago, politicians made tough decisions to preserve the ozone layer. Climate protection requires just as much courage today.
40 years ago, the ozone hole was mankind's biggest climate problem, but an international agreement brought about a turning point. New figures now show that the hole is shrinking – and has not been as small as it has been for decades.
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