(Phys.org)—New findings from an international research team led by Western University geography professor Brian Luckman, based on tree-ring patterns, show unusual patterns of tree growth in the Southern Hemisphere relating ...
Earth Sciences
Nov 2, 2012
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The average area covered by the Antarctic ozone hole this year was the second smallest in the last 20 years, according to data from NASA and National Oceanic and Atmospheric Administration (NOAA) satellites. Scientists attribute ...
Earth Sciences
Oct 24, 2012
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The ice goes on seemingly forever in a white pancake-flat landscape, stretching farther than ever before. And yet in this confounding region of the world, that spreading ice may be a cockeyed signal of man-made climate change, ...
Earth Sciences
Oct 10, 2012
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On Sept. 16, 1987, representatives from nations around the world drafted a landmark treaty known as the Montreal Protocol. This step marked the beginning of the international agreement to phase out substances that deplete ...
Earth Sciences
Sep 18, 2012
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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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(AP) -- F. Sherwood Rowland, the Nobel prize-winning chemist who sounded the alarm on the thinning of the Earth's ozone layer and crusaded against the use of man-made chemicals that were harming earth's atmospheric blanket, ...
Earth Sciences
Mar 12, 2012
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Extraordinarily cold temperatures in the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far: The mechanisms leading to the first ozone hole above the North Pole were studied ...
Earth Sciences
Jan 19, 2012
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(PhysOrg.com) -- One set of human-created gases is starting to relinquish its hold on Antarctic climate as another group of emissions produced by human activity is starting to take hold, according to a paper in Nature Geoscience, ...
Earth Sciences
Nov 2, 2011
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The Earth's thinning ozone layer is synonymous with a singing and dancing seagull named Sid -- at least it is in New Zealand and Australia.
Environment
Oct 21, 2011
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The Antarctic ozone hole, which yawns wide every Southern Hemisphere spring, reached its annual peak on September 12, stretching 10.05 million square miles, the ninth largest on record. Above the South Pole, the ozone hole ...
Earth Sciences
Oct 20, 2011
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