"When a special team of EPA inspectors first showed up at an industrial plant belching carcinogens on the worn outskirts of Birmingham, Ala., in 2011, their findings of flagrant regulatory violations were later deemed serious enough to warrant a referral to the Justice Department."

"The government spent millions subsidizing new wood heaters supposed to burn more cleanly. But an investigation has discovered critical flaws".

"A long-awaited update to traveling pollution rules released Monday gives upwind states fresh requirements to manage their emission reductions in downwind states that struggle with ozone pollution."

"The U.S. Congress is investigating a multibillion-dollar subsidy for chemically treated coal that is meant to reduce smokestack pollution, after evidence emerged that power plants using the fuel produced more smog not less."

"Tens of millions of Americans experienced at least a day last year shrouded in wildfire smoke. Entire cities were blanketed, in some cases for weeks, as unprecedented wildfires tore across the Western U.S., causing increases in hospitalizations for respiratory emergencies and concerns about people's longer-term health."

"An increasing number of states are looking to follow the precedent set by California and adopt stricter vehicle emissions standards as the Biden administration appears poised to green light those efforts."

"As oil companies go out of business, they are leaving a legacy of abandoned wells that leak huge amounts of greenhouse gases into the atmosphere".

"The Minnesota Supreme Court on Wednesday reversed an appeals court’s rejection of a critical air emissions permit for the planned PolyMet copper-nickel mine and sent the case back for further proceedings."

"The largest U.S. oil refiners released tons of air pollutants into the skies over Texas this past week, according to figures provided to the state, as refineries and petrochemical plants in the region scrambled to shut production during frigid weather."