Still Waters Posted December 12, 2013 #1 Share Posted December 12, 2013 New insight has been gained into the recovery of the ozone layer. Scientists have been puzzled why the hole, which forms each year over Antarctica, has been changing considerably in size from year to year. Now Nasa researchers say it is the weather that is primarily driving this variability - not the ozone-destroying chemicals in the upper atmosphere. http://www.bbc.co.uk...onment-25344563 Link to comment Share on other sites More sharing options...
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