News tagged with ozone hole
Low temperatures enhance ozone degradation above the Arctic
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 ...
Space & Earth / Earth Sciences
Jan 19, 2012 |
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Greenhouse gases to overpower ozone hole
(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 ...
Space & Earth / Earth Sciences
Nov 02, 2011 |
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Ozone depletion a bigger deal down under
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.
Oct 21, 2011 |
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Significant ozone hole remains over Antarctica
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, ...
Space & Earth / Earth Sciences
Oct 20, 2011 |
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Jury still out on whether the Arctic ozone hole is an exception
Last winter, an unprecedented ozone hole appeared above the Arctic, five times the size of Germany. For ETH-Zurich professor Thomas Peter, the recently published study comes as no surprise. But it does raise ...
Space & Earth / Earth Sciences
Oct 12, 2011 |
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Astrophysics and extinctions: News about planet-threatening events
Space is a violent place. If a star explodes or black holes collide anywhere in our part of the Milky Way, they'd give off colossal blasts of lethal gamma-rays, X-rays and cosmic rays and it's perfectly reasonable to expect ...
Space & Earth / Space Exploration
Oct 07, 2011 |
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Whither the ozone hole?
To mark the annual International Day for the Preservation of the Ozone Layer (Ozone Day), Dr Neil Harris, an expert on the atmospheric composition from the University’s Department of Chemistry, discusses ...
Space & Earth / Earth Sciences
Sep 16, 2011 |
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Explaining Antarctic ozone hole anomalies
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 ...
Space & Earth / Earth Sciences
Jul 15, 2011 |
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New study links ozone hole to climate change all the way to the equator
In a study to be published in the April 21st issue of Science magazine, researchers at Columbia University's School of Engineering and Applied Science report their findings that the ozone hole, which is located over the So ...
Space & Earth / Earth Sciences
Apr 21, 2011 |
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Using chaos to model geophysical phenomena
Geophysical phenomena such as the dynamics of the atmosphere and ocean circulation are typically modeled mathematically by tracking the motion of air or water particles. These mathematical models define velocity ...
Dec 07, 2010 |
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UN scientists say ozone layer depletion has stopped
The protective ozone layer in the earth's upper atmosphere has stopped thinning and should largely be restored by mid century thanks to a ban on harmful chemicals, UN scientists said on Thursday.
Space & Earth / Earth Sciences
Sep 16, 2010 |
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Key compound of ozone destruction detected
For the first time, KIT scientists have successfully measured in the ozone layer the chlorine compound ClOOCl which plays an important role in stratospheric ozone depletion. The doubts in the established models ...
Space & Earth / Earth Sciences
Jul 22, 2010 |
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Pollution dispersion research aids understanding of 2002 break-up of Antarctic ozone hole
The eruption of the volcano in Iceland has drawn attention to air flow patterns, as airlines lost millions of dollars and travelers remained stranded for days to weeks, as particles from the natural disaster traveled over ...
Space & Earth / Earth Sciences
May 24, 2010 |
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Scientists celebrate 25th anniversary of ozone hole discovery
An international group of scientists will gather at the University of Cambridge on Friday 7 May 2010 to celebrate the 25th anniversary of the discovery of the hole in the ozone layer, one of the most dramatic scientific findings ...
Space & Earth / Earth Sciences
May 05, 2010 |
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Aerosols: From Ash in the Wind to Smoke from the Stack
(PhysOrg.com) -- When we hear the word "aerosol," most of us think of spray cans and perhaps the ozone hole. But spray cans are just a very small part of the story. Any airborne solid particle or liquid droplet ...
Space & Earth / Earth Sciences
Apr 16, 2010 |
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