"Michigan Attorney General Dana Nessel said Wednesday she will move in June to shut a Great Lakes oil pipeline if the governor cannot reach a resolution with operator Enbridge, saying the state is in “great peril” the longer the oil continues to flow under a sensitive waterway."

"Los Angeles County sued Monsanto Co on Thursday, seeking to force the unit of Germany’s Bayer AG to help pay for reducing PCB contamination in dozens of bodies of water."

"Illinois is poised to become the latest state to crack down on power plants' coal ash waste, a hazardous byproduct of coal burning and source of groundwater contamination."

"A career Bureau of Land Management official who was fired last month says the Trump administration is refusing to enforce federal laws and regulations governing livestock grazing in Nevada out of fear of sparking another armed standoff like the one five years ago involving rancher Cliven Bundy."

"New Hampshire has sued eight companies including 3M and the DuPont Co. for damage it says has been caused by a class of potentially toxic chemicals found in pizza boxes, fast-food wrappers and drinking water."

"U.S. Interior Secretary David Bernhardt has agreed to put off oil and gas leasing for a year on land that Native Americans consider sacred surrounding Chaco Culture National Historical Park in northwestern New Mexico."

"A government watchdog group on Wednesday requested an investigation into the head of the Environmental Protection Agency’s (EPA) air office, arguing the Trump appointee violated an ethics pledge by meeting with former clients."

"A major environmental group helped drive a federal court decision last week blocking emergency funds for President Trump's planned border wall build-out."

"When the Trump administration exempted parts of the Chicago area last year from federal limits on lung-damaging smog, it delivered a huge financial break to steel mills, chemical plants and other industries that are some of the region’s biggest polluters."

"A half-million-acre national wildlife refuge would be established in California's Riverside County under a new bill introduced with bipartisan support."