NEW YORK, April 5 -- Columbia University's Lamont-Doherty Earth Observatory issued the following news: * * * Melting Glaciers Reveal Clues to Climate Adaptation in Norway's Mountains Glacial archaeologists are uncovering hundreds of artifacts in Norway, including the best preserved pair of prehistoric skis found to date. By Emily Cohen Glacial archaeologists have recently discovered the second prehistoric ski of a pair of skis at Digervarden, a mountain in central Norway. Found just five me  more