"A group representing major automakers on Tuesday vowed to work with President-elect Joe Biden on efforts to reduce vehicle emissions even as the industry remains split over whether to let California set its own emission rules."

Standard methods of monitoring air pollution are missing major pollution incidents.

"The fires sweeping across millions of acres in California aren’t just incinerating trees and houses. They’re also filling the lungs of California’s children with smoke, with potentially grave effects over the course of their lives."

"The owners and operators of more than half a million diesel pickup trucks have been illegally disabling their vehicles’ emissions control technology over the past decade, allowing excess emissions equivalent to 9 million extra trucks on the road, a new federal report has concluded."

"General Motors turned its back Monday on the Trump administration’s legal fight to nullify California’s strict fuel economy rules, signaling that it was ready to work with President-elect Joseph R. Biden Jr. to reduce climate-warming emissions from cars and trucks."

"A federal appeals court on Thursday upheld a 2018 jury verdict that led to awarding monetary damages to neighbors of a North Carolina industrial hog operation for smells and noise they said made living nearby unbearable."

"After years of work, the Trump administration has succeeded in formally unraveling a venerable industrial air toxics policy. Does industry much care?"

"Incoming leaders of the EPA air office will face a consequential choice: Which Trump administration rollbacks will they undo first?"