United Press International: A study has determined China’s carbon dioxide emissions are far outpacing previous estimates, making the goal of stabilizing greenhouse gases more difficult. Previous estimates, researchers said, suggested the region that includes China would see a 2.5 percent to 5 percent annual increase in CO2 emissions between 2004 and 2010. But a new analysis at the University of California-Berkeley and University of California-San Diego suggests the annual growth rate for China is at least …