Why the Largest-Ever Arctic Ozone Hole Just Closed - GV Wire - Explore. Explain. Expose
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Why the Largest-Ever Arctic Ozone Hole Just Closed



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An ozone hole over the Arctic that was the largest ever recorded there has closed, according to the Copernicus Atmosphere Monitoring Service (CAMS). And its beginning and end have nothing to do with climate change, global warming or a reduction in air pollution because of the coronavirus pandemic.

It has to do simply with the weather.

CAMS monitored the rather unusual ozone hole that formed over the Arctic this spring and was reported closed April 23. Ozone holes are more common over the Antarctic every year, according to CAMS, but “the conditions needed for such strong ozone depletion are not normally found in the Northern Hemisphere.”

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