the hole in the ozone layer over Antarctica. Image: NASA, public domain. But It Will Take Longer for Holes at the Poles According to a report titled “Scientific Assessment of Ozone Depletion 2010” by U.N. scientists, the ozone layer has finally stopped thinning and could recover to pre-1980 levels by 2045-2060, though the annual springtime ozone hole over Antarctica (pictured above) is not expected to recover until 2073. The Montreal Protocol that banned many ozone-depleting chemicals, signed in 1987, is mostly responsible for the recovery…. Read the full story on TreeHugger
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Ozone Layer Could Recover to Pre-1980 Levels by 2045-2060, Says U.N.
