Start Date: End Date: Published Date Data Date
SO2 Pollution Controls Bring Results
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Published December 2, 2011
Scientists using a NASA satellite found that sulfur dioxide levels in the vicinity of major coal-fired power plants in the U.S. have fallen by half since 2005.
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2011 Antarctic Ozone Minimum
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Published October 21, 2011
The annual ozone hole over Antarctica reached its maximum area on September 12, 2011, and its maximum depth on October 9, 2011.
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.
Ash from Puyehue-Cordón Caulle
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Published June 18, 2011
This series of images tracks ash from a Chilean volcano that made a nearly complete circle around the world.
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Dust Blown from Africa to Scandinavia
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Published April 15, 2011
The Ozone Monitoring Instrument (OMI) on NASA's Aura satellite spied dust from a Saharan sand storm blowing several thousand kilometers over the North Atlantic and Europe in April 2011.
Arctic Ozone Loss
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Published March 30, 2011
Recent observations from satellites and ground stations suggest that atmospheric ozone levels for March in the Arctic were approaching the lowest levels in the modern instrumental era.
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Ozone Hole through the years
Published February 1, 2011
This series of images shows the Antarctic ozone hole on the day of its maximum depletion in 1979, 1987, 2006, and 2010; that is, the days with the thinnest ozone layer.
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