"Simultaneous high levels of the two pollutants, which harm human health, are occurring with increasing frequency, researchers say."

"Dangerous levels of two air pollutants, ozone and smoke, are occurring in tandem with increasing frequency over widespread parts of the Western United States where millions of people live, researchers said Wednesday.

The two harmful pollutants are a result of worsening wildfires and extreme heat, and researchers suggest the increase is linked to climate change.

"The Environmental Protection Agency (EPA) announced Monday [Dec. 27] that it will require more facilities to report the release of a carcinogenic gas called ethylene oxide (EtO), after previously not requiring them to do so."

"Some concrete plants and sand facilities in Bayview-Hunters Point have had only draft permits for years. An air district spokesman said finalizing permits have taken longer “than we would have liked.”"

"Raymond Tompkins thinks the high efficiency air filters in his old, gold Mercedes are among the car’s best features. They trap dust and tiny pollution particles, and they’re fitted with activated charcoal to help remove odors—an invaluable function for a longtime resident of San Francisco’s most polluted neighborhood.

"Williams Cos., one of the biggest transporters of natural gas in the U.S., said an intentional release of a powerful greenhouse gas detected by satellite was caused by work on one of its pipelines."

"As President Biden closes out his first year in office, he still has not nominated EPA’s top air official, a role that takes on even greater importance with climate legislation stalling on Capitol Hill."

"Ocean freight costs are likely to remain high in 2022 as investors and regulators scramble to accelerate decarbonisation of the shipping industry and companies grapple with green financing, sources say."

"An accident-prone oil refinery in the U.S. Virgin Islands with a history of serious environmental violations could soon reopen under new ownership, despite strong objections from nearby communities, a litany of environmental scandals and a shaky financial outlook."

"The Biden administration on Tuesday finalized a reversal of a rule issued under then-U.S. President Donald Trump that sought to pre-empt California's vehicle emissions regulations."

"Wood burning stoves in urban areas are responsible for almost half of people’s exposure to cancer-causing chemicals found in air pollution particles, new research has shown."

"One of the most dangerous chemical plants in America sits in one of West Virginia’s only majority-Black communities. For decades, residents of Institute have raised alarms about air pollution. They say concerns have “fallen on deaf ears.”"