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?

As multiple wildfires ravage the Los Angeles area, leaving behind a trail of destruction, killing at least 24 people and destroying thousands of structures, officials and firefighters are working ...

Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant to tamp the flames, leading to dramatic images of the material blanketing scores of ...

Air tankers are dropping thousands of gallons of red flame retardant in the hills around ... he says — who guide massive planes through low-altitude drops over challenging terrain.

Some of the visuals coming out of Los Angeles County over the past week show a vivid pink substance coating streets, cars and plants. This is fire retardant, dropped by aerial firefighting tankers in ...

Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant ... As large tankers drop tons of the retardant over swaths of Southern ...

Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant to tamp the flames, leading to dramatic images of the material blanketing scores of ...

Crews battling the deadly Los Angeles wildfires have been dropping a bright pink fire retardant across the city ... dumped across landscapes from planes or helicopters. The phosphate in the ...

Aerial support during the California wildfires has been grounded at times by high winds. Here's what the aircrafts do and why they can't fly in certain conditions.

Los Angeles County neighborhoods were painted red this week as planes flew — and continue ... but what makes up fire retardant and why is it different than only using water to fight wildfires?