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What did the 2023 United Nations report project for Arctic ozone recovery?
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Ozone depletion
The Antarctic ozone hole reaches its maximum extent in October of each year. On October 7, 2021, when this image was captured, the Antarctic ozone hole spanned 24.8 million square km (9.6 million square miles).
According to a 2023 report by the United Nations, the ozone layer over the Arctic is projected to recover to its 1980-level concentrations by 2045, provided that countries continue to adhere to the limits established by the Montreal Protocol and its subsequent agreements.12