More than 17 million people from eastern Texas to the lower Mississippi Valley are facing severe thunderstorms and possible tornadoes. Dallas, Texas has already faced flooding.

During the recent fires, many L.A. residents were inundated with information (and misinformation) about air quality. Here's the latest on a few spots where you can hike safely post-fires and not fret ...

In a heated community meeting, furious residents assailed federal officials for trucking electric vehicle batteries and other ...

Researchers contributing to the ASCENT network of air quality sensors observed spikes in lead and chlorine downwind from the ...