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Causes of 2011 Arctic ozone hole determined http://t.co/AmI06Pl8vS
2013-03-11 23:49:00| Climate Ark Climate Change & Global Warming Newsfeed
Science Daily: A combination of extreme cold temperatures, human-made chemicals and a stagnant atmosphere were behind what became known as the Arctic ozone hole of 2011, a new NASA study finds. Even when both poles of the planet undergo ozone losses during the winter, the Arctic's ozone depletion tends to be milder and shorter-lived than the Antarctic's. This is because the three key ingredients needed for ozone-destroying chemical reactions -- chlorine from human-made chlorofluorocarbons (CFCs), frigid temperatures...
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Hole In Antarctic Ozone Layer May Be On The Mend
2013-02-09 22:18:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: According to satellite data, the most recent hole in the ozone layer measured over Antarctica was the smallest it has been in ten years. Other long-term research studies also indicate that the Earth`s ozone layer seems to be on the mend thanks to international agreements to protect this vital layer of the atmosphere. Continuing the work started by ERS-2 and Envisat satellites, imaging from the European Space Agencys (ESA) MetOp weather satellite showed the yearly hole over Antarctica to be at...
Ozone hole changes ocean flow
2013-02-01 07:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Australian Broadcasting Corporation: CFC legacy The hole in the Antarctic ozone layer has caused changes in the way that waters in the southern oceans mix, an international study shows. A team of scientists led by Professor Darryn Waugh of Johns Hopkins University, has found that waters originating at the surface at sub-tropical latitudes is mixing into the deeper ocean at a much higher rate than it did 20 years ago, and the reverse is true for waters closer to Antarctica. The study shows these changes are part of the oceans'...