Climate Central: The Arctic may not have smashed records for sea ice loss and land-based ice melt in 2013, but the region is still clearly undergoing rapid changes as a result of manmade global warming, scientists reported Thursday. The release of the annual Arctic Report Card, which was written by 147 scientists from 14 nations, shows that spring snow cover throughout large parts of the Arctic remains in free-fall, that older, thicker sea ice cover is a thing of the past, and that commercially valuable fish species,...