Billions are spent reacting to wildfires after they start. Prevention still receives a fraction of that attention.

Every wildfire season the same image appears on the news: aircraft flying low over burning hillsides and releasing large clouds of bright red fire retardant. It has become one of the most recognizable symbols of wildfire response in the United States.

That material is commonly known as Phos-Chek fire retardant, produced by Perimeter Solutions, and it has been used for decades as part of aerial firefighting operations. These drops can slow flames and help firefighters create containment lines once a fire is already spreading.

But the timing of that response is important. By the moment aircraft are dropping retardant, the wildfire has already started. The damage risk to homes, infrastructure, and entire communities is already in motion.

Wildfire suppression has become an enormous industry. Federal and state governments collectively spend billions of dollars each year on firefighting aircraft, crews, and emergency response infrastructure. As fires grow larger and more destructive, those costs continue to climb.

What has historically received less attention is prevention. Reducing the likelihood that vegetation, structures, or surrounding materials ignite in the first place can dramatically reduce the scale of disasters before suppression resources are even needed.

That thinking is starting to change. Policymakers in wildfire-prone states are increasingly emphasizing home hardening, vegetation management, and fire-resilience programs designed to lower ignition risk around communities.

This shift is also why some investors are beginning to watch companies operating in the wildfire-prevention space. CitroTech (CITR) positions its technology around fire-inhibiting chemistry designed to reduce the flammability of vegetation, wood, and structural materials before a fire reaches them. According to the company, its chemistry is recognized under the EPA Safer Choice program, highlighting a focus on environmental safety while still delivering fire-retardant performance.

The concept is straightforward. Instead of relying entirely on emergency suppression after flames appear, technologies can be applied earlier to help reduce ignition risk and slow fire spread before a worst-case scenario unfolds.

As wildfire seasons become longer and more destructive, the broader conversation is slowly shifting. It is no longer only about how fires are fought. Increasingly, it is also about how they can be prevented.