The world’s largest facility meant to turn methane gas from coal mines into electricity is running in China’s Shanxi province, the project leader said Friday. China’s Lu’an Group, owner of the Gaohe coal mine in the eastern province, said a 30-megawatt generator was now working to utilize 99 percent of the methane gas emitted from the mine . China gets more than half of its energy needs met by coal power, though the country has started an ambitious effort to advance a low-carbon economy. Coal mines in China emit more than 350 billion cubic feet of methane gas, a harmful greenhouse gas, every year. Mines are under pressure to curb their emissions as part of government reforms. Chinese President Xi Jinping joined U.S. President Barack Obama in late 2014 to […]