"The solar power business is growing quickly in the U.S. More than 500,000 homeowners and businesses installed solar panels in just the first half of this year, according to a Solar Energy Industries Association report."

"NEW ORLEANS — A federal judge has ruled that BP must stand by the agreement made with the companies it compensated for losses after the 2010 Gulf oil spill despite the oil giant saying some claims were overestimated."

"U.S. Secretary of State John Kerry said Monday the United States could potentially unlock a $6 trillion energy market by revamping the country's fractured electricity grid, a move that he said would boost the competitiveness of renewable energy."

"In a sweeping effort to reduce its environmental impact, New York City is planning to overhaul the energy-efficiency standards of all its public buildings and to pressure private landlords to make similar improvements."

"John D. Rockefeller built a vast fortune on oil. Now his heirs are abandoning fossil fuels."

"An oil boom in Wyoming is having a filthy side effect. A string of accidents, ranging in geography from a remote gulley in the Powder River Basin to a refinery in downtown Cheyenne, already has made this year the state's worst for oil spills since at least 2009, state records show."

"Coal has been transported around the country by rail for decades. But very little research has been done on what coal does to the environment when it escapes from trains.With two large coal export terminals proposed for Washington state, one federal agency is hoping to add good science to the debate over coal in the Northwest."