"Despite evidence that southeast Wisconsin is violating new and tougher emissions standards for smog, state officials are asking the Trump administration to set aside a recent federal finding and conclude the state is complying with the law."

"A federal court on Monday ordered the Environmental Protection Agency to implement protections against smog set in 2015, the latest defeat in court by the agency as it rolls back environmental regulations."

"The House on Wednesday continued to pick apart Obama-era environmental regulations, taking aim at a pair of rules limiting emissions from the brick industry and on indoor wood heaters."

"The barn where David Hughes raises chicks on his Shenandoah Valley turkey farm smells mostly like the wood shavings he spreads across the floor for bedding. And that may be an important clue in a farm regulation battle that's about to come to a head 118 miles to the east in the nation's capital."

"The Clean Air Council has filed notice it will sue the U.S. Environmental Protection Agency unless the agency forces the Allegheny County Health Department to review and issue long overdue operating permits for many of the county’s biggest industrial air pollution sources."

"In the debate over how quickly to make American cars pollute less, the nation’s auto-parts makers are now in open disagreement with the automakers that buy the countless transmissions, turbochargers and other components that make up modern automobiles."

"A bipartisan group of senators introduced a bill Friday that would let the Environmental Protection Agency (EPA) implement a global deal meant to phase out certain greenhouse gases."