Air

"Day-to-day increases in air pollution, even at levels generally considered acceptable, are associated with increased deaths among the elderly."

"A federal court wants the Environmental Protection Agency (EPA) to report, with “precision and specificity,” how it plans to take a key step in implementing a 2015 smog pollution rule."

"U.S. EPA Administrator Scott Pruitt is instructing agency officials to effectively drop enforcement of one key facet of the New Source Review program, in what could be a prelude to broad changes in the handling of air permits for both new plants and expansions of existing facilities."

"Fourteen states and the District of Columbia announced Thursday that they are suing the Trump administration over what they say is a failure to enforce smog standards."

"A top Volkswagen official in the United States was sentenced on Wednesday to seven years in prison for his role in the German automaker’s decade-long scheme to cheat on diesel emissions tests."

"As firefighters fought to control deadly wildfires north of San Francisco last month, a small unit of Alphabet Inc.’s Google had a more modest goal. It had employees driving cars around loaded with air-monitoring equipment to measure how badly the smoke was polluting the air."