Air

"A newly identified particle in smoke, dark brown carbon, can warm the atmosphere by absorbing sunlight."

"Scientists and educators are searching for ways to improve air quality in the nation’s often dilapidated school buildings."

"On a sunny afternoon in a cluttered music room at East High in Denver, two sophomores practiced violin while their music teacher, Keith Oxman, labored over a desk in an adjoining office.

The ceiling fans were off to prevent the sheet music from scattering. The windows were sealed shut. East High is Denver’s largest high school and among the oldest, and there is no modern ventilation system.

"On Thursday, NASA released the first data maps from its new instrument launched to space earlier this year, which now is successfully transmitting information about major air pollutants over North America."

"What do you get when you combine record-breaking heat, wildfire smoke and sunlight? Ground-level ozone in amounts high enough to cause health problems in both Baton Rouge and New Orleans on Friday and Saturday, according to the federal/state Air Quality Index."

"EPA is restarting review of a high-stakes decision on ground-level ozone standards in a step that short-circuits the prospects for any imminent action to tighten limits on the lung-damaging pollutant."

"Some Texans who challenge oil and gas waste sites must spend significant sums and time on investigating what they say the Texas Railroad Commission should examine. Will new regulations for handling waste increase oversight or just maintain the status quo?"

"Asthma and low life expectancy are highly prevalent in communities around West Virginia’s coal-fired power plants, federal data show."

"Two years ago, we got a chance to assure parents and teachers, in any future epidemic, that the air in classrooms was safer, making it easier for children to attend school in person and avoid learning loss and isolation."

"The Edison Electric Institute, which represents investor-owned utilities, said in formal comments Tuesday that the Environmental Protection Agency's proposed limits on greenhouse gas emissions from coal and gas-fired power plants are too strict, and said power plant owners need more flexibility, including more time to install pollution controls."

"A developer has big ideas to turn tires, plastic and electronic waste into energy at 30 locations, starting with a tire-to-gas plant next to the jail and student housing in the heart of what was once Ohio’s Steel Valley."