The July heat wave brought record electricity demand and steady, high winds at the site of a future wind farm off the coast of Cape Cod.
Use this interactive tool to explore and compare renewable portfolio standards in the US.
A proposed wind farm has divided the small town of Cape Vincent, New York, demonstrating the challenges involved in expanding this renewable energy source.
The Obama administration is speeding up efforts to tap the renewable energy potential of public land across the U.S.
In Colorado, the National Renewable Energy Laboratory has built one of the most energy efficient office buildings in the world.
The idea of drawing down atmospheric carbon with high-tech scrubbers has gotten a lot of attention lately, but a new report says that for now, it's relatively costly and inefficient.
A new special report from the UN climate panel suggests renewables could meet 80 percent of world energy demand by 2050.
Last week, Washington Governor Chris Gregoire signed a bill to close the state's only remaining coal-burning power plant.