FILE - In this July 15, 2009 file photo, U.S. Secretary of Commerce Gary Locke, center, chats with an unidentified Chinese officer as he looks at a turbine inside the China Resources Golden Concord-Co-generation Plant at the Beijing Development Area in Beijing. China has overtaken the United States as the world's largest energy consumer, the International Energy Agency said Tuesday, July 20, 2010. China immediately questioned the calculation. (AP Photo/Andy Wong, File)
In this Dec. 3, 2009, file photo, workers load coal into a truck outside a coal mine in Dadong, Shanxi province, China. China has overtaken the United States as the world's largest energy consumer, the International Energy Agency said Tuesday, July 20, 2010. China immediately questioned the calculation. (AP Photo/Andy Wong, File)
