"Montana officials said Sunday that an oil pipeline breach spilled up to 50,000 gallons of oil into the Yellowstone River near Glendive, but they said they are unaware of any threats to public safety or health."

"A U.S. federal court has ruled for the first time that manure from livestock facilities can be regulated as solid waste, a decision hailed by environmentalists as opening the door to potential legal challenges against facilities across the country."

"Researchers have found that pharmaceuticals and personal-care byproducts persist at low levels miles from sewage discharge pipes in Lake Michigan. And a study from the University of Wisconsin-Milwaukee shows that the most prevalent drug in the lake — the Type 2 diabetes medication Metformin — changes the hormonal system of fish exposed to it."

"A federal judge in New Orleans ruled Thursday that 3.19 million barrels of oil were spilled during the 2010 Gulf of Mexico oil disaster. The ruling means BP now faces up to $13.7 billion in pollution fines for the spill, well below the amount federal prosecutors want the company to pay."

"U.S. EPA is proposing new water protection and monitoring regulations for a controversial form of uranium mining, according to a copy obtained by Greenwire."

"New scientific sampling and analysis has found high concentrations of ammonium and iodide, two potentially hazardous pollutants, in oil and gas well drilling wastewater discharged into streams and rivers in Pennsylvania and other states."

"The Environmental Protection Agency on Tuesday proposed new requirements for testing the toxicity and effectiveness of chemical dispersants used to break up oil spills."

"In President Obama’s latest move using executive authority to tackle climate change, administration officials will announce plans this week to impose new regulations on the oil and gas industry’s emissions of methane, a powerful greenhouse gas, according to a person familiar with Mr. Obama’s plans."