"The eruption of Hawaii’s Mauna Loa, the world’s largest active volcano, has interrupted a key site that monitors greenhouse gas concentrations in the atmosphere, officials said Tuesday."

"Almost a million stillbirths a year can be attributed to air pollution, according to the first global study. The research estimated that almost half of stillbirths could be linked to exposure to pollution particles smaller than 2.5 microns (PM2.5), mostly produced from the burning of fossil fuels."

"A vent at an underground natural gas storage well in Western Pennsylvania has been spewing massive amounts of planet-warming methane into the atmosphere for more than 11 days and attempts to plug the leak have thus far failed."

"Louisiana communities containing industrial plants and high percentages of Black residents experienced seven to 21 times more toxic air emissions than similar locations with higher percentages of White residents, according to a new study by researchers with the Tulane Environmental Law Clinic."

"EPA will not allow the shuttered St. Croix refinery to reopen until the owners obtain a new Clean Air Act permit accompanied by upgraded pollution controls."

"The Biden administration is strengthening its plan for limiting methane emissions from oil and gas wells after environmentalists panned an earlier version as too weak."

"A Philadelphia environmental group has filed an appeal to block a proposed $1.1 billion “advanced” plastics recycling plant in rural Pennsylvania after the administration of Gov. Tom Wolf, a Democrat, exempted the facility from having to obtain a solid waste permit."

"Authorities in New Delhi ordered primary schools to shut from Saturday, and told schools to stop outdoor activities for older children as air in the world's most polluted capital had become a severe risk to health."

"The U.S. Environmental Protection Agency (EPA) said on Thursday it plans to issue tougher greenhouse gas emissions rules for heavy duty trucks and other larger vehicles through at least the 2030 model year by the end of 2023."

"Racially segregated communities in the United States are exposed to airborne toxic metals at a rate that’s nearly 10 times higher than more well-integrated areas, according to a new study published Tuesday."