Global warming increases UV?

[Kai Kaletsch <eic@shaw.ca>]

There is a story on reuters (

http://www.reuters.com/newsArticle.jhtml?type=scienceNews&storyID=6147501 )

that essentially states that UV radiation will rise sharply in the arctic as

a result of global warming.



Could someone explain the mechanism to me?



Thanks,



Kai



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