"PITTSBURGH -- A project examining the local health impacts from natural gas drilling is providing some of the first preliminary numbers about people who may be affected, and the results challenge the industry position that no one suffers but also suggest the problems may not be as widespread as some critics claim."

"OTTAWA -- Ever since President Obama said in June that a litmus test for the proposed Keystone XL oil pipeline from Canada was whether it would 'significantly' worsen global warming, Canadian government officials have insisted it would not."

"WATERFLOW — The sickness came in increments, a slow onslaught of weight loss, stomach pain and extreme diarrhea."

"The U.S. Federal Trade Commission said it will examine allegations that oil companies may be undermining efforts to distribute renewable fuels."

"A 'complete breakdown of safety' in 2010 has not been sufficiently addressed, a neglect that may spell trouble for its other aging lines, the report says."

"It’s not unusual for think tanks, lobbyists, PR firms and deep-pocketed foundations to draw battle lines when the president nominates a new agency head — unless the agency is an obscure regulatory body with an ungainly nickname like 'FERC.'"

"CHEYENNE, Wyo. -- For the first time, nobody has bid on a federal coal tract offered for sale in Wyoming after the company that initially sought to mine the location determined that it couldn't do so profitably."

"Wind-turbine makers are poised to make their first profit in years after shutting underused factories and abandoning a drive for growth at all costs."

"The Interior Department [Wednesday] proposed a new rule designed to strengthen the safety of offshore oil and gas production technologies as industry reaches into deeper and riskier waters."

"At least three people were killed by an ammonia gas leak from a pipeline owned by state oil monopoly Pemex in southern Mexico on Tuesday and 1,500 people were evacuated from the area and taken to shelters, the company said."

"Trains smack of progress, freedom and adventure. It’s said that railroads revolutionized America. The Association of American Railroads (AAR) touts the safety record of the rails: 'In 2012, North American railroads safely delivered more than 2.47 million carloads of hazardous materials.' But sometimes trains leak, derail or just plain explode."

"Letter calls draft environmental impact statement on controversial transnational oil-sands project 'inaccurate'"

"Quebec's government last week added rail giant Canadian Pacific Railway Corp. to its list of companies deemed responsible for cleanup costs following last month's deadly oil train derailment."

"Residents have complained for years about thick black smoke and possible pollution coming from the MarkWest gas plant in Chartiers. But the state Department of Environmental Protection said it couldn't take action because it had no evidence. On Tuesday, the department said it had the goods."

"WASHINGTON -- Ohio Gov. John Kasich (R) has forced out the head of a key division of the Ohio Environmental Protection Agency in response to pressure from the coal industry, according to an email obtained by The Huffington Post."