April 24, 2013 Up until now, the U.S. has had the same rules for all oil pipelines. But the EPA says pipelines that carry tar sands oil, like the proposed Keystone XL pipeline, should have special standards. That's because tar sands oil spills can release harmful air pollution and are vastly more difficult to clean up than conventional oil spills.
April 10, 2013 A brief history of America, as seen through energy sources — from wood to nuclear power, and beyond.
April 3, 2013 We've become more energy efficient in the last five decades, but what does that mean for total energy use? The answer, in two graphics.
April 2, 2013 Critics argue that wind turbine syndrome is a fictional malady perpetuated by people angered by the wind turbines in their communities. Now ear, nose and throat experts are finally weighing in on whether it could be real.
April 1, 2013 MRThe U.S. Environmental Protection Agency could soon issue a final ruling that aims to force oil companies to replace E10, gasoline mixed with 10 percent ethanol, with E15. This move could come just as widespread support for ethanol, which is made from corn, appears to be eroding.
March 31, 2013 The pipeline ruptured in the town of Mayflower on Friday, causing the evacuation of 22 homes. Crews have recovered about 4,500 barrels of oil and water, Exxon said Saturday. Officials are also monitoring air quality.
March 28, 2013 Many economists say Americans are witnessing a "manufacturing renaissance," thanks to abundant and reliable energy sources.
March 27, 2013 Building huge turbine farms too close together might significantly reduce their power, some atmospheric scientists say. The problem is "wind shadow" — the turbulence created by one big cluster of turbines that steals wind from another cluster down the road.
March 27, 2013 Creators of a solar-powered aircraft hope to fly it day and night across the U.S. with no fuel, and eventually around the world. It's a quixotic — some might call it nutty — undertaking. But the creators hope the flight helps challenge assumptions about what solar technology can do.
March 20, 2013 The company, a victim of a worldwide glut in solar panels, missed a $541 million bond payment and was forced into restructuring on Wednesday.