"This country’s battle to curb oil imports is being plotted in high-tech laboratories and elite universities hunting for breakthroughs in alternative fuels. But the frontlines in the effort to bring such fuels to market can be found in places like a working-class neighborhood in this river town, not far from where Pony Express riders saddled up to journey west."

"Extracting natural gas from shale formations using hydraulic fracturing generates more greenhouse-gas emissions than burning coal, according to a new study that drew immediate attacks from oil and gas interests already facing pressure from lawmakers and regulators worried about the environmental effects of shale-gas development."

"Dozens of large-scale clean energy projects could be derailed if a measure to defund a federal loan guarantee program becomes part of a final Congressional budget deal."

"Beneath the lush, green hills of eastern Utah's Uinta Basin, where elk, bear and bison outnumber people, the soil is saturated with a sticky tar that may soon provide a new domestic source of petroleum for the United States. It would be a first-of-its kind project in the country that some fear could be a slippery slope toward widespread wilderness destruction."

"Three gas pipelines have exploded in an Iranain province south of the capital Tehran, a news agency reported Friday, saying the cause was unknown and giving no details of damage or casualties."