The ozone layer, which protects us from ultraviolet light, looks to be successfully healing after gaping holes were discovered in the 1980s. The Northern Hemisphere could be fully fixed by the 2030s and Antarctica by the 2060s. A new United Nations report says it's an example of what global agreements can achieve. The ozone layer had been damaged by man-made chemicals called chlorofluorocarbons (CFCs).- BBC
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