Mexico City has had great successes in improving air quality, but keeping the air clean is still a big challenge, with growing population and industry.
A study finds that children exposed to a pollutant found in vehicle exhaust and power plant emissions are at a higher risk of developmental problems.
A new generation of inexpensive, portable devices that allow air quality monitoring to be more targeted is being tested in cities across the U.S.
More than 230 million people worldwide know the breathing difficulty of asthma. Air pollution increases asthma, but treatment and prevention can help.
New technologies suck CO2 from sources before it enters the atmosphere. The U.S. expands this technology to reduce emissions contributing to climate change.
Black soot produced by carbon-based fuels is falling on the Arctic Ocean, absorbing heat and accelerating melting. Arctic nations want to reduce soot.
How do you know if you’re breathing clean air? Often you don’t, without access to air quality data. Years ago, U.S. environmental researchers figured out...