Arctic thaw quickening threatens trillion-dollar costs: report

(The online version of the April 24 story is refiled to fix byline, and typo in 12th paragraph) By Alister Doyle OSLO, April 25 (Reuters) - The Arctic's quickening thaw is melting the permafrost under buildings and roads from Siberia to Alaska, raising world sea levels and disrupting temperature patterns further south, an international study said on Tuesday. The frigid region's shift to warmer and wetter conditions, resulting in melting ice around the region, may cost the world economy trillions of dollars this century, it estimated. The report by 90 scientists, including United States experts, urged governments with interests in the Arctic to cut greenhouse gas emissions.
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