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Another Lively Season of Night-Shining Clouds
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Published July 9, 2020
Extremely cold and wet conditions in the mesosphere have led to abundant noctilucent clouds.
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Australian Smoke Plume Sets Records
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Published January 31, 2020
Potent wildfires sent one of the largest plumes of smoke higher into the stratosphere than certain satellites have ever observed.
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Measurements Show Reduction in Ozone-Eating Chemical
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Published February 13, 2018
New research from NASA scientists shows that the amount of chlorine in the stratosphere over the South Pole is declining at the same time that ozone holes are becoming less severe.
Long Cold Spell Leads to Arctic Ozone Hole
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Published October 6, 2011
An unusually long period of cold temperatures and strong winds allowed an Arctic ozone hole to form in March 2011.