Another warm, sunny Tuesday afternoon features that milky, hazy sky that we have become familiar with thanks to raging wildfires out west and up north. So far, though, air quality

If the wildfires currently blazing across the US are causing poor air quality in your area, here's how you can stay safe.

Several rapidly spreading wildfires in Southern California have generated unhealthy levels of smoke in areas close to where the blazes are burning. And millions of people across Southern California are also under an excessive heat warning.

A U.S. Forest Service study shows that wildfire season in Montana has grown longer, contributing to more days with lower air quality.