COPENHAGEN – New computer modeling suggests the Arctic Ocean may be nearly ice-free in the summertime as early as 2014, Al Gore said Monday at the U.N. climate conference. This new projection, following several years of dramatic retreat by polar sea ice, suggests that the ice cap may nearly vanish in the summer much sooner than the year 2030, as was forecast by a U.S. government agency eight months ago. One U.S. government scientist Monday questioned the new prediction as too severe, but other researchers previously have projected a quicker end than 2030 to the Arctic summer ice cap. "It...