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Ozone’s Long Path to Recovery
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Published December 19, 2013
Does a smaller hole mean that Antarctic ozone is recovering? Not yet, say NASA scientists. A deeper look at the ozone hole shows that for now weather still has a bigger influence on the size of the ozone hole than policies that limited emissions of ozone-destroying chemicals.
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Ozone Hole 2013
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Published October 26, 2013
Ozone depletion was significant in 2013, but less than the long-term average.
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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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Pollution across Southwestern Asia
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Published January 18, 2013
NASA’s Aura satellite observes nitrogen dioxide hovering over many cities in the region, trapped by winter weather conditions.
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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