"World governments meeting in Poland from Monday are likely to make only modest progress in reaching a 2015 deal to fight climate change, with concern over economic growth at least partially eclipsing scientists' warnings of rising temperatures."

"The Tennessee Valley Authority has polluted groundwater supplies around all of its coal-fired power plants – including ones near Gallatin and Clarksville, a national environmental group concluded in a report released Thursday."

"Canada’s biggest energy companies including Suncor Energy Inc. and Imperial Oil Ltd. are trailing global peers in reporting environmental performance as scrutiny of the oil sands intensifies."

"The ongoing U.S. oil boom has flooded the Gulf Coast with domestic crude to levels not seen in decades, creating a homegrown oil glut in the nation's refining center just as the Obama administration prepares to rule on a pipeline that would add a torrent of heavy Canadian crude to the same region."

"DENVER — Three Colorado cities voted Tuesday to ban fracking, the kind of test that might be coming to states from California to North Carolina as oil and gas drilling surges from coast to coast."

"The country's largest nuclear plant operator, Exelon Corp., has publicly fought to torpedo the wind industry's coveted production tax credits, calling them financial threats to its reactors in the Midwest. But the Chicago-based utility is also cashing in on those credits, known as PTCs."

"Exelon's third-quarter earnings results released last week show the company benefiting from the tax incentives that provide wind developers with $23 for every megawatt-hour of electricity they produce. Details about which of Exelon's 44 wind projects generate the PTCs are private."

"PITTSBURGH -- The U.S. Coast Guard is seeking public comments on a proposal that would allow barges to transport shale gas wastewater, a drilling byproduct that can include chemicals, radioactive material and heavy metals."

"BISMARCK, N.D. -- A Canadian company has applied to build the largest oil pipeline yet from western North Dakota's booming oil patch and will soon begin courting oil producers to reserve space, a key step in a $2.6 billion project that would move millions of gallons of oil to Minnesota and Wisconsin."

"FRANKFORT, Ky. -- A group of Catholic nuns who successfully redirected the route of a proposed pipeline off their land are joining other religious leaders who say their faith has prompted them to oppose the ongoing project."

"Measure to enact a moratorium on hydraulic fracturing trailing slightly in Broomfield."