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Sulfur Dioxide Increasing Over India
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Published December 20, 2013
A new analysis of data from the Aura satellite shows greater concentrations of this atmospheric pollutant.
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A Satellite’s View of Ship Pollution
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Published February 8, 2013
Elevated levels of nitrogen dioxide popped out over certain shipping lanes when observed by Aura.
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Volcanic Fertilizer
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Published January 31, 2013
An eruption in the Aleutian Islands prompts a bloom of plankton 2000 miles downwind. The ocean soaks up carbon dioxide in the process, but not as much as you'd think.
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Watching the Ozone Hole Before and After the Montreal Protocol
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Published September 18, 2012
NASA satellites have observed the Antarctic ozone hole since the late 1970s—before and after nations agreed to stop producing chemicals that destroy the ozone layer.
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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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A Day of Night-Shining Clouds
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Published January 28, 2011
High-altitude night-shining clouds form and dissipate on a daily cycle revealed in this series of images made from data from the Ozone Monitoring Instrument on NASA’s Aura satellite.
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Night-Shining Clouds are Getting Brighter
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Published January 27, 2011
The rare night-shining clouds seen in this photo are both forming more frequently and becoming brighter, trends that point to changes in the atmosphere linked to greenhouse gases.
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