"Rep. Raúl Grijalva (D-Ariz.) requested an independent audit today of the State Department's environmental review system for projects such as Keystone XL, his latest step to protest the Obama administration's handling of the controversial oil sands crude pipeline."

"Exxon Mobil's CEO has joined a lawsuit to stop construction of a water tower near his home that would be used to in the fracking process to drill for oil."

New Jersey's GOP Gov. Chris Christie wants to put millions of tons of petroleum-contaminated soil in a place where scientists say it is sure to leak into the environment and threaten public health.

Rep. John Dingell (D-MI), who played a key role in shaping the environmental legislation of the modern era, has announced he will retire. As he represented the auto industry in his Detroit district, that environmental legacy was mixed.

"The Supreme Court’s swing vote on Monday voiced skepticism of a key plank in the Obama administration’s efforts to limit greenhouse gas emissions."

"A Democratic fundraiser last week at billionaire Tom Steyer’s home amounted to a summit between Washington’s liberal elite and San Francisco’s climate intelligentsia."

"WASHINGTON — President Obama in recent days has been announcing muscular executive actions to address climate change, making good on his promise to act on pressing problems “with or without Congress.” On Monday, the Supreme Court will consider the limits of that approach, in a case on greenhouse gas emissions."

"Less than three years after signing legislation opening up Ohio state parks and forests to fracking, Gov. John Kasich now opposes the controversial horizontal drilling for oil and gas on public lands."

"Federal prosecutors widened their investigation triggered by a massive coal ash spill in North Carolina, demanding reams of documents and ordering nearly 20 state environmental agency employees to testify before a grand jury."

"Prime Minister Stephen Harper was again rebuffed in his bid to press U.S. President Barack Obama to approve the controversial Keystone XL pipeline when he raised the issue during a North American leaders’ summit in Toluca, Mexico."