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?

At Neptune Aviation, an aerial firefighting company based in Missoula, maintenance crews work throughout the winter to keep ...

during the Boyles Fire in September.Credit...Justin Sullivan/Getty Images The United States Forest Service said on Thursday that nine large retardant-spraying planes, as well as 20 water-dropping ...

Planes drop fire retardant on homes in California Here ... While the compound is cleared for use in America by the USDA Forest Service, there is good reason to be wary of Phos-Chek as the agency ...

The long-term retardant is a common fire-suppression tool that has been used for more than half a century. It is approved for use by the U.S. Forest Service, however, citing environmental concerns ...

Firefighters battling the deadly wildfires that raced through the Los Angeles area in January 2025 have been hampered by a limited supply of freshwater. So, when the winds are calm enough, skilled ...

A Fire has broken out and is currently being fought by firefighters in Monte Coto, near the quarries at Pinoso.

The Canadian-made CL-415 planes are sent to California each fall as part of an annual contract that has existed for more than 30 years. Stephane Caron of Quebec’s forest fire protection agency ...

The Forest Service says heavy metals aren't added to fire retardants ... he says — who guide massive planes through low-altitude drops over challenging terrain. "You know, some of those ...

The long-term retardant is a common fire-suppression tool that has been used for more than half a century. It is approved for use by the U.S. Forest Service, however, citing environmental concerns ...