"Seattle, Washington, and Portland, Oregon, were the two major cities with the worst air quality in the world Thursday due to wildfires burning in the Pacific Northwest."

"The Environmental Protection Agency announced plans Thursday to further cut emissions of climate super-pollutants widely used in air conditioning and refrigeration, the latest step in the United States’ effort to phase down the potent greenhouse gases."

"When Janet Schaaf-Gunter peered through the window at San Pedro Bay last year, she saw so many cargo ships it looked as if Southern California was on the brink of an invasion."

"The Antarctic ozone hole last week peaked at a moderately large size for the third straight year — bigger than the size of North America — but experts say it’s still generally shrinking despite recent blips because of high altitude cold weather."

"Chemical companies are dodging a federal law designed to track how many PFAS “forever chemicals” their plants are discharging into the environment by exploiting a loophole created in the Trump administration’s final months, a new analysis of federal records has found."

"The state Departments of Environmental Quality and Health may be violating federal civil rights laws and regulations by allowing Black people to suffer disproportionate impacts from air pollution in Louisiana's industrial corridor, including an increased risk of cancer, the federal Environmental Protection Agency said Wednesday."

"After almost a decade of talks, the nations of the world committed Friday to drastically lower emissions of planet-warming gases from the world’s airplanes by 2050, a milestone in efforts to ease the climate effects of a fast-growing sector."

"Online retailing delivers a public health problem. When Truck Season Became All-Year-Round."