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Hole In Arctic Ozone Larger Than Ever Before

The ozone layer over the Northern Hemisphere is offering less protection than ever before, the journal Nature reports in the issue published on 2 October.  Researchers discovered that the hole that developed over the Arctic this year was about two million square kilometers in size, similar to the hole that appears each spring over the Antarctic. The ozone layer was discovered in 1913.  It is located in the stratosphere, between 10 to 20 miles above the Earth’s surface, where it absorbs most of the sun’s high frequency ultraviolet light.  Holes in the ozone layer are thought to expose people below to greater levels of cancer and cataract-causing UV radiation.  Nature’s study shows that people in Norway, Greenland, and areas of northern Russia were most at risk. Most holes in the ozone layer … Read entire article »

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