Arctic thaw quickening threatens trillion-dollar costs: Report [http://cmsenvis.cmsindia.org/resources/newspaper/details.asp?id=90357]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.