Recent increases in an unregulated ozone-depleting substance, could delay recovery of Antarctic ozone levels by 5-30 years, depending on emissions scenarios.
Environment
Jun 27, 2017
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(PhysOrg.com) -- Scientists at the Naval Research Laboratory have identified a new mode of coupling between the stratosphere — which can drive variations at the summer mesopause — and the ionosphere, thereby establishing ...
Earth Sciences
Mar 28, 2012
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On the heels of another halting round of talks on climate change, UN scientists this week will review quick-fix options for beating back the threat of global warming that rely on technology rather than political wrangling.
Environment
Jun 19, 2011
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(PhysOrg.com) -- The annual ozone hole has started developing over the South Pole, and it appears that it will be comparable to ozone depletions over the past decade. This composite image from September 10 depicts ozone concentrations ...
Earth Sciences
Sep 16, 2009
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Since the Antarctic ozone hole was detected in 1985, depletion of the ozone layer—the "big umbrella" that protects all life on Earth—has raised considerable concern. The efforts of international communities led to the ...
Environment
Jul 15, 2019
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The strongly reduced Antarctic stratospheric ozone hole destruction in 2010 and several other recent years results from the occurrence of dramatic meteorological events in the polar winter, known as sudden stratospheric warmings ...
Earth Sciences
Jul 15, 2011
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(PhysOrg.com) -- NASA has successfully completed the first science flight of the Global Hawk unpiloted aircraft system over the Pacific Ocean. The flight was the first of five scheduled for this month's Global Hawk Pacific, ...
Earth Sciences
Apr 9, 2010
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NASA scientists have revealed the inner workings of the ozone hole that forms annually over Antarctica and found that declining chlorine in the stratosphere has not yet caused a recovery of the ozone hole.
Earth Sciences
Dec 11, 2013
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Carbon dioxide emissions from the burning of coal, oil, and gas have been increasing over the past decades, causing the Earth to get hotter and hotter. There are concerns that a continuation of these trends could have catastrophic ...
Environment
Jan 22, 2012
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The ozone layer of the lower stratosphere is an extremely diffuse abundance of O3 that absorbs up to 99 percent of incoming ultraviolet solar radiation, thereby creating the conditions that make known life possible. In the ...
