"The White House Monday started its final review of a proposal to improve the efficiency of large trucks and reduce their greenhouse gas emissions."

"An anticipated cascade of litigation targeting the Obama administration's new drilling rule gained speed yesterday as a Wyoming lawsuit became the second legal challenge on court dockets so far."

"Sens. Rob Portman (R-Ohio) and Jeanne Shaheen (D-N.H.) squeaked in a vote early Friday morning on their energy efficiency bill after the Senate ended an hours-long marathon on the budget."

"If a new rule takes effect, about 95 percent of all pipelines would be subject to stricter safety testing because of their age, location and other factors."

"The Supreme Court on Wednesday seemed closely divided over the fate of one of the Obama administration’s most ambitious environmental initiatives."

"Seven filed suit to force prestigious college to divorce its fortune and its future from fossil fuels."

"ANNAPOLIS, Md. — A bill to place a three-year moratorium on fracking in Maryland survived eight amendments and is headed to a vote in the House of Delegates."

"Oil company BP said on Monday it has stopped supporting conservative political group ALEC, becoming the latest corporation to end its membership in a group critics say works to deny the existence of climate change."

"The Supreme Court will hear arguments Wednesday in a case that challenges one of the Obama administration's most significant environmental regulations."

"The Obama administration on Friday unveiled the nation’s first major federal regulations on hydraulic fracturing, a technique for oil and gas drilling that has led to a significant increase in American energy production but has also raised concerns about health and safety risks."