"A legacy of mining means that toxic metals could be carried along plumes of smoke." 

"Researchers have long warned that tiny air pollutants — 30 times smaller than the width of a human hair — are linked to preterm births. Now they’re one step closer to knowing why: Breathing in these tiny particles — largely caused by traffic, industry, burning fossil fuels and wildfire smoke — disrupts the molecules in pregnant women’s blood, raising the risk for preterm and early births, according to a new study from Emory University."

"Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put out, authorities and experts say." 

"A massive cloud of dust from the Sahara Desert blanketed most of the Caribbean on Monday in the biggest event of its kind this year as it heads toward the United States."

"The Japanese steelmaker has pledged to extend the life of U.S. Steel’s dirty blast furnaces if Trump greenlights a deal, potentially locking in decades of pollution."

"Fossil fuel revenues bankroll education spending in this state, but schools exposed to industry pollution face environmental risks that can affect children’s health and performance." 

"Community groups are fighting an unusual Louisiana law that restricts how they use data from air-quality monitors, saying it violates free speech."

"Congress has voted to undo a Clean Air Act regulation that strictly controls the amount of toxic air pollutants emitted by many industrial facilities like oil refineries, chemical plants, and steel mills."

"In a move Democrats warned would have disastrous consequences for the economy, the environment and public health, the Republican-led Senate Thursday voted to block California’s electric-vehicle mandates, revoking the state’s right to implement the nation’s toughest emissions standards."