"EPA plans to quickly revamp its guidelines for evaluating whether environmental contaminants can cause cancer or other ailments, a move Trump administration critics fear is part of a broader effort to weaken the basis for regulating a wide range of pollutants."

"Oregon will ban restaurants from automatically offering single-use plastic straws under a measure passed by lawmakers, making it the second state to enact restrictions on plastic straws."

"The Sierra Club on Thursday said it plans to have staff and volunteers back the efforts of 100 yet-to-be-selected campaigns across the country, making it the latest green group to commit significant resources to help elect candidates who vow to take action on climate change."

"Demonstrators in Louisiana stepped off on a five-day march on Thursday, demanding environmental justice for a region besieged by toxic pollution from chemical plants."

"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."