science1 publisher
Antarctic ozone hole spreads to 27.4 million square kilometres on a cold, strong polar vortex
Antarctica's ozone hole reached 27.4 million square kilometres in September, a size topped only in 2000 and 2015. Its forecasters blame a cold, strong polar vortex, so the size says little about the Montreal Protocol until the weather's share is measured.
Publishers:phys.org
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