Earth's ozone layer could fully 'recover' in the next few decades

That is the assessment of the United Nations in its latest report. This is considered the result of joint actions of countries around the world.

Image assessing the total ozone content of the atmosphere over Antarctica on September 13, in which blue and purple represent areas with the least ozone - Photo: NASA

The ozone hole over Antarctica was first discovered in the late 1970s.

According to France 24, the latest report from the United Nations World Meteorological Organization (WMO) on September 16 showed that the size of the ozone hole in 2024 was smaller than in previous years.

"The ozone layer is now recovering," said UN Secretary-General Antonio Guterres, explaining that the improvement was because countries had heeded scientific warnings.

In the "Ozone and UV Bulletin" report published on September 16, WMO pointed out that this recovery "is partly due to natural atmospheric factors that create year-to-year fluctuations, but this positive trend also reflects the success of international cooperation actions".

The report was released to mark World Ozone Day (September 16) and the 40th anniversary of the signing of the Vienna Convention for the Protection of the Ozone Layer in 1985, which recognized stratospheric ozone depletion as a global problem.

In addition to the above convention, the Montreal Protocol was also signed in 1987, to phase out ozone-depleting substances found mainly in refrigerators, air conditioners and aerosol sprays.

To date, WMO credits the Protocol with eliminating more than 99% of the production and consumption of ozone-depleting substances.

WMO predicts that by mid-21st century, the ozone layer will be restored to its 1980s level. A restored ozone layer will reduce the risk of skin cancer, cataracts and minimize damage to ecosystems caused by long-term exposure to ultraviolet radiation.

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Source: https://tuoitre.vn/tang-ozone-cua-trai-dat-co-the-hoan-toan-binh-phuc-trong-vai-thap-ky-toi-20250916110903231.htm