Reuters: U.S. energy-related emissions of the greenhouse gas carbon dioxide by 2030 will be 9.4 percent less than forecast last year as renewable energy develops and prices cut demand, the Energy Information Administration said on Wednesday. Energy-related carbon dioxide emissions will hit 6.410 billion metric tons in 2030, the EIA said in its Annual Energy Outlook 2009. In its 2008 outlook, the EIA had forecast the emissions to hit 6.851 billion metric tons by 2030. “Efficiency …