Parts of Southern California are covered with pink fire retardant as firefighters try to control deadly wildfires raging in ...

Crews battling the deadly ongoing Los Angeles wildfires have started dropping bright pink fire retardant known as Phos-Chek from the skies to combat the stubborn flames. The eye-catching flame ...

As fire crews and air tankers work to block the wildfires' explosive growth, images of red clouds of fire retardant falling onto trees are common. What is it — and what's in it?

Aircraft battling fires raging through the Los Angeles area are dropping hundreds of thousands of gallons of hot-pink fire ...

The bright substance blanketing areas of Los Angeles County has long been used to stop wildfires from spreading.

It’s widely used because it can slow flames in ways that water can’t. But it also contains heavy metals and other harmful ...