"SPRINGFIELD, Ill. -- Dominion Energy has agreed to pay a $3.4 million civil penalty and spend $9.75 million on environmental mitigation projects to resolve Clean Air Act violations at coal-fired power plants in three states."

"Exxon Mobil was working to clean up thousands of barrels of oil in Mayflower, Arkansas, after a pipeline carrying heavy Canadian crude ruptured, a major spill likely to stoke debate over transporting Canada's oil to the United States."

"WRIGHT, Wyo. -- In Wyoming, folks call it the 'No Elk' plant, an $800 million project that -- once finished -- was meant to supply coal-fired power to 100,000 homes and support dozens of full-time jobs on the rolling prairie of northeast Wyoming."

"Despite some lingering anger over wood-burning rules, Bay Area air quality officials say a five-year burn ban has paid off for the region's 7 million residents."

"The Environmental Protection Agency will move ahead Friday with a rule requiring cleaner gasoline and lower-pollution vehicles nationwide, amounting to one of President Obama’s most significant air pollution initiatives, according to people briefed on the decision."

"TRAVERSE CITY, Mich. — Government regulators can try to halt construction projects at power plants if they think the companies didn't properly calculate whether the changes would increase air pollution, a federal appeals court ruled Thursday, marking the latest twist in a decades-long fight over the Clean Air Act."

"GONZALES, Tex. -- In a dusty lot off the main highway in this South Texas town, Vern Sartin pointed to a collection of hose hookups and large storage tanks used for collecting wastewater from hydraulic fracturing jobs."

"Energy subsidies cost governments from the U.S. to Egypt $1.9 trillion, discourage private investment and help wealthy consumers more than the poor, according to a study by International Monetary Fund staff."

"A mile-long train hauling oil from Canada derailed and leaked 30,000 gallons of crude in western Minnesota on Wednesday, as debate rages over the environmental risks of transporting tar sands across the border."

"The Coast Guard has asked the Justice Department to investigate possible pollution violations by both the drilling rigs Shell used in its botched efforts to explore for oil last year in the Arctic Ocean waters off the northern coast of Alaska."

"Snow-surveying crews across the Sierra are seeing bad news up close this week. California has about half a snowpack."

"A controversial offshore wind project off the coast of Aberdeen has been approved by the Scottish government. The 11-turbine European Offshore Wind Deployment Centre is bitterly opposed by US businessman Donald Trump, who has complained that it will the spoil the view from his nearby golf course."

"CHEYENNE, Wyo. -- A judge in Casper has sided with the state of Wyoming and ruled against environmentalists who sought to obtain lists of the ingredients that go into hydraulic fracturing fluids."

"When a Texas landowner took his fear that a gas driller had poisoned his well to federal regulators, the company, Range Resources Corp., turned around and sued him for conspiring 'to harm Range.'"

"BILLINGS, Mont. -- Federal regulators proposed $1.7 million in civil penalties against Exxon Mobil Corp. on Monday for safety violations linked to a pipeline rupture that spilled an estimated 63,000 gallons of crude oil into Montana's scenic Yellowstone River."