"A panel of appeals court judges scrapped a Trump-era rule yesterday that it said did not set strong enough restrictions on downwind states' exposure to smog-forming air pollutants produced by upwind neighbors."

"Alaska’s Bristol Bay is a rare pristine salmon fishery. Can it survive a rapidly changing climate—and a massive, Trump-backed mine?"

"A coalition of New England and mid-Atlantic states on Tuesday took a first step toward limiting transportation emissions across 13 states."

"BUTTE, Mont. — The long-awaited discharge of treated wastewater from a former open pit copper mine into Silver Bow Creek in Butte has started with little fanfare."

"An oil spill has contaminated beaches and coastline across eight Brazilian states, the country’s environment agency said on Friday, although authorities are still stumped as to its origin."

"The Trump administration tried to pin California’s water woes on the homeless, but water quality experts say there is little connection between homeless camps and water pollution."

"Legislation that would require the EPA to designate all PFAS as hazardous substances within one year isn’t feasible, Environmental Protection Agency Administrator Andrew Wheeler said Sept. 26."

"California sued the Trump administration today over EPA's refusal to extend Clean Water Act protections to salt ponds in San Francisco Bay."

"China has denounced a landmark U.N. deal that caps emissions from international flights, in a setback for an industry eager to placate the growing international movement to curb air travel’s impact on the environment."