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Latest Ozone depletion Stories

2011-04-21 22:59:47

First time that ozone depletion is shown to impact the entire circulation of the southern hemisphere 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 South Pole, has affected the entire circulation of the Southern Hemisphere all the way to the equator. While previous work has shown that the ozone hole is changing the...

2011-04-13 08:30:00

MINNEAPOLIS, April 13, 2011 /PRNewswire/ -- Cargill will be a financial and exclusive marketing partner for the tradable emission credits generated by San Francisco-based EOS Climate, a company which uses market-based incentives to prevent emissions of harmful greenhouse gases (GHGs) associated with older refrigerators and cooling systems. These systems typically contain chlorofluorocarbons (CFCs), chemicals which are extremely harmful to the ozone layer, and have been phased out of...

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2011-04-11 08:58:16

Storing fruits and vegetables in ozone-enriched environments reduces spoilage explains a scientist at the Society for General Microbiology's Spring Conference in Harrogate. Dr Ian Singleton explains how ozone treatment could be a safe, effective replacement for pesticides as it leaves no residue on foods. It is estimated that up to 30% of fresh produce can be lost due to microbial spoilage. Dr Singleton from Newcastle University explains that low levels of gaseous ozone are able to prevent...

2011-04-05 15:46:11

Over the past few days ozone-depleted air masses extended from the north pole to southern Scandinavia leading to higher than normal levels of ultraviolet (UV) radiation during sunny days in southern Finland. These air masses will move east over the next few days, covering parts of Russia and perhaps extend as far south as the Chinese/Russian border. Such excursions of ozone-depleted air may also occur over Central Europe and could reach as far south as the Mediterranean. On an international...

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2011-04-05 11:05:00

In the spring of 2011, the ozone layer that protects us from harmful levels of ultraviolet rays has shown a record loss in the Arctic region, according to the U.N. weather agency. The continued presence of ozone-depleting substances in the atmosphere coupled with a very cold winter in the stratosphere is to blame. Although an international agreement from 1987 called the Montreal Protocol has successfully reduced the production and consumption of these ozone destroying chemicals, the long...

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2011-04-04 20:59:50

ESA's Envisat satellite has measured record low levels of ozone over the Euro-Atlantic sector of the northern hemisphere during March. This record low was caused by unusually strong winds, known as the polar vortex, which isolated the atmospheric mass over the North Pole and prevented it from mixing with air in the mid-latitudes.This led to very low temperatures and created conditions similar to those that occur every southern hemisphere winter over the Antarctic.  As March sunlight...

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2011-03-14 09:15:00

Arctic-wide measurements verify rapid depletion in recent days Unusually low temperatures in the Arctic ozone layer have recently initiated massive ozone depletion. The Arctic appears to be heading for a record loss of this trace gas that protects the Earth's surface against ultraviolet radiation from the sun. This result has been found by measurements carried out by an international network of over 30 ozone sounding stations spread all over the Arctic and Subarctic and coordinated by the...

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2011-03-09 12:47:44

Wyoming is looking more like Los Angeles because of the recent boom in natural gas drilling, reports The Associated Press (AP). People are now complaining of watery eyes, shortness of breath and bloody noses because of ozone levels that have exceeded what people in L.A. and other major cities deal with. In the Upper Green River Basin, some wonder if they have made a bargain with the devil by having gas drilling go strong again.  Because of this, Wyoming enjoys one of the nation's...

2011-02-21 20:41:33

By studying collections of a marine bryozoan that date back to a famous 1901 expedition to the South Pole, researchers have found that those organisms were growing steadily up until 1990, when their growth more than doubled. The data, reported in the February 22 issue of Current Biology, a Cell Press publication, provide the highest-latitude record of a century of growth and some of the first evidence that polar carbon sinks may be increasing. The bryozoan in question, known as Cellarinella...

2011-02-09 22:42:46

Brightly-lit Cowboys Stadium during Sunday's Super Bowl XLV may symbolize one of the hottest new pieces of scientific intelligence about air pollution: Researchers have discovered "” in a classic case of scientific serendipity "” that the bright light from sports stadiums and urban street lights may boost daytime levels of ozone, a key air pollutant in many heavily populated areas. That's among the topics included in a broader article about the chemistry of air pollution in the...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'