Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

Utah atmospheric scientists reveal that a proposed "geoengineering" strategy to remove a potent greenhouse gas could worsen ...

A recent report has revealed a startling truth about global air pollution: only seven countries worldwide meet safe air ...

Atmospheric scientists show proposed 'geoengineering' effort to remove methane, a potent greenhouse gas, from the atmosphere could worse air quality while providing minimal climate benefits.

A fire at the world’s largest battery storage plant in Northern California is smoldering after sending plumes of toxic smoke ...

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

The LA wildfires have burned tens of thousands of acres – but on some weather maps, air quality still looks good. What’s ...

There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.

The Air Quality Index (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...

Compared to Phoenix air quality around the holidays and after ... was lighting off fireworks,” Humble said. “It was off the scale, toxic almost.” Paradise Valley mansion with indoor ...

In California, schools are asked to move recess and gym class indoors and reschedule outdoor athletic events when air quality is deemed “unhealthy,” under state guidance. But the decision to ...