"The splitting headaches began when smoke from wildfires rolled in around Tim Hunt’s suburban Seattle home. Next came a debilitating fatigue. As deadly wildfires rage across the U.S. West, Hunt and others are struggling with some of the world’s worst air pollution."

"A coalition of 20 states and four municipalities sued the Environmental Protection Agency (EPA) on Monday over its rollback of methane emissions standards for oil and gas production."

"Automaker Daimler AG and subsidiary Mercedes-Benz USA have agreed to pay $1.5 billion to the U.S. government and California state regulators to resolve emissions cheating allegations, officials said Monday."

"Four west coast cities in the US currently rank in the top 10 for worst air quality in the world, as wildfires rage up and down the western seaboard, cloaking the entire region in smoke."

"Historic wildfires raging from California to Colorado are weakening watersheds and setting the stage for deadly mudslides and flooding and, in some places, threatening to poison critical water supplies."

"Last summer, oil and gas-industry groups were lobbying to overturn federal rules on leaks of natural gas, a major contributor to climate change. Their message: The companies had emissions under control. In private, the lobbyists were saying something very different."

"Chicago, the last big American city to require water pipes made of brain-damaging lead, is now the last one beginning to rip toxic pipes out of the ground."

"The Chesapeake Bay Foundation and Maryland sued the Environmental Protection Agency on Thursday, claiming the agency failed to enforce bay cleanup goals for New York and Pennsylvania."

"In a rare show of defiance of the Trump administration, key Senate Republicans joined Democrats on Thursday in agreeing to phase out chemicals widely used in air conditioners and refrigeration that are warming the planet."

"Thousands of tons of pollution spew into the air in the US from devices that proliferate online and in body shops".