Coal ash is scooped up on a canoe paddle from the bank of the Dan River as state and federal environmental officials continued their investigations of a spill of coal ash in Eden, N.C. (AP Photo/Gerry Broome)

Federal authorities investigate coal ash spill

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A Duke spokesman confirmed the nation’s largest electricity provider received a subpoena.

Categories: Coal, Environment
(AP Photo/Brennan Linsley)

Methane emissions higher than federal estimates, study shows

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National methane emissions are up to 75 percent higher than the Environmental Protection Agency has previously estimated, according to a study to be published Friday.
OriginOil CEO Riggs Eckelberry shows the before-and-after results of the Clean Frac process, which cleans the gooey byproduct of hydraulic fracturing into water to be reused. (Zain Shauk/Houston Chronicle)

Water recycler to open Houston office

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Water recycler OriginOil, which signed its first deal last year to bring its technology into the oil field, plans to open a Houston office to help spread its technology, the company said.
NRG Energy has a carbon capture project at its W.A. Parish Power Plant in Fort Bend County. (For the Chronicle/Gary Fountain)

Carbon capture could raise wholesale energy price 80 percent

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Requiring the use of carbon capture and sequestration technologies at coal-fired power plants could increase the wholesale price of electricity between 70 percent and 80 percent, an Energy Department official said.
A ConEd repair truck the 14th street and Avenue C power plant in New York City. (Brian Ach/Getty Images)

Con Edison to calculate benefits of preparing utility for climate change

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Electric utility Con Edison will conduct an economic analysis to quantify the benefits of preparing its infrastructure for the impacts of climate change, a company official said Feb. 10.
(AP Photo/Dirk Lammers, File)

Report: Ethanol’s role could diminish as biofuels grow

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Biofuels consumption will increase by more than 57 percent over the next decade, but the proportion that comes from ethanol is likely to decline, according to new projections from market research firm Navigant Research.
Categories: Environment, Gasoline
(AP Photo/Evan Vucci)

Texas lawmakers fail on environmental scorecard

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House Republicans’ environmental credentials are at rock-bottom lows, according to new ratings released Tuesday.
The existing Keystone oil pipeline is constructed in North Dakota.   (Photo courtesy of TransCanada)

Keystone consultant disclosed ‘conflict of interest’ to feds

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The consulting firm that wrote a largely favorable environmental review of the proposed Keystone XL pipeline disclosed to the State Department work it did that led to allegations of a conflict of interest after it won the contract, according to newly released documents.
Scott Environmental Services operations manager Paul Kern, left, and supervisor Gumaro Herrera, test partially treated solid drilling waste. The company has developed processes for turning drilling waste into material for oil field roads and rig pads.

Q&A: Oil field leftovers don’t go to waste

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Blake Scott, the founder and president of Scott Environmental Services, has developed a way to turn solid drilling waste into a material that can be used to pave oil field roads and rig pads.
Activists engage in civil disobedience Wednesday, February 13, 2013 at the White House in Washington, D.C., in hopes of pressuring President Barack Obama to reject the Keystone XL oil sands pipeline. (Olivier Douliery/Abaca Press)

Keystone XL pipeline records sought in Sierra Club suit

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Keystone XL pipeline records are being sought by the Sierra Club in a lawsuit claiming the U.S. Army Corps of Engineers has to make public documents related to its review of TransCanada Corp. (TRP)’s project.