The hole in the ozone layer could actually close in less than 50 years, UN says.

The article discusses the gradual healing of Earth's ozone layer, as reported by a recent United Nations assessment, which indicates that the ozone hole over Antarctica could fully mend in approximately 43 years. This recovery is attributed to the global commitment established by the 1987 Montreal Protocol, which banned ozone-depleting chemicals. While progress is evident, the report notes that the ozone levels will not return to pre-thinning levels until around 2040 in the global average and 2045 in the Arctic, with Antarctica expected to take until 2066. The article highlights the significant reduction in harmful chemicals like chlorine and bromine, emphasizing the success of international efforts to protect the ozone layer and its implications for broader climate action. [Extracted from the article]