The intensity of radiation is so high we cannot enter
In the hills and forests of Gran Canaria, a woman with a chainsaw is quietly dismantling one of the most persistent myths of our age: that wildfires are tamed from the sky. Sara Gutiérrez, a forest firefighter with nearly two decades of experience, explains that it is ground crews removing fuel — not aerial water drops — who actually stop fires from advancing. Her testimony points to a deeper paradox in Spain's firefighting culture, where rapid suppression has quietly fed the conditions for catastrophe, and where the most sustainable answers lie not in reaction, but in prevention.
- Every summer, dramatic aerial footage of water drops shapes public understanding of wildfire response — but that spectacle conceals the real work happening on the ground, invisible and misunderstood.
- Spain's efficient suppression system has created a dangerous feedback loop: by extinguishing fires quickly, it allows fuel to accumulate year after year until a blaze finally escapes control with overwhelming force.
- Firefighters like Gutiérrez face thermal radiation beyond the threshold of survivability, extreme physical depletion, and psychological strain that rarely surfaces in public conversation about the profession.
- Prescribed burns and landscape management — grazing, agriculture, strategic fuel breaks — offer cheaper and more durable solutions than reactive suppression, yet remain underfunded and underused.
- Climate change is stretching fire season into winter, while 85–90% of Spain's forest firefighters remain on precarious seasonal contracts, and women in the field still confront cultural barriers that evidence alone has not dissolved.
Sara Gutiérrez spends her summers in a rhythm of waiting and intensity — twelve-hour shifts at the station, nights on call, brief rests before the cycle begins again. At forty, with an environmental science degree and nearly two decades in Gran Canaria's fire brigade, she has grown accustomed to correcting a stubborn public misconception: planes and helicopters do not extinguish wildfires.
The aerial drops that dominate news footage serve one purpose — reducing flame intensity enough for ground crews to move in safely. It is those crews, chainsaw operators like Gutiérrez herself, who do the actual work: stripping away the vegetation that fire needs to advance. When flames reach a cleared line, there is nothing left to burn. She came to the chainsaw after years in a fire watchtower, choosing the harder path despite her initial fear. Now she loves the work, even as she is clear-eyed about its limits. At fire intensities of ten thousand kilowatts per meter, no equipment offers meaningful protection. Some fires simply cannot be fought.
Spain has built one of Europe's most capable suppression systems, and therein lies the paradox. By extinguishing fires so rapidly, the system prevents the natural burn-off of accumulated vegetation. Fuel builds silently in the forest year after year, until a fire eventually escapes and arrives with catastrophic force. The answer, Gutiérrez argues, is not more helicopters but investment in the landscape itself — grazing, agriculture, and prescribed burns that create a mosaic of interrupted fuel before dangerous accumulations form.
Prescribed burns, set deliberately under controlled conditions of humidity and wind, cost far less than reactive suppression and work with the logic of fire rather than against it. Technology like Gran Canaria's Alertagran thermal detection network adds capability, but Gutiérrez will not advocate abandoning human watchers in the towers. She remembers the blackout when communications failed entirely.
Climate change has already extended fire season into winter, intensifying a workforce crisis that rarely makes headlines. Around 85 to 90 percent of Spain's forest firefighters work on discontinuous seasonal contracts, employed for roughly ten months before their contracts expire in December and resume in February. Gutiérrez is among them. And when she removes her helmet, the surprise on people's faces reminds her that another barrier remains: the profession is still culturally coded as male, despite everything women like her demonstrate daily. The barriers, she says, are not physical. They are cultural — and they persist even as the fires grow longer, hotter, and harder to contain.
Sara Gutiérrez stands in the heat of a Canarian summer, waiting. Two days a week she sits at the fire station base for twelve hours, radio on, ready. Two more days she stays reachable by phone. Then she gets a break before the cycle flips to nights. This is the rhythm of a forest firefighter's life—long stretches of preparation punctuated by moments of extreme intensity. At forty, with a degree in environmental science and nearly two decades in the Cabildo of Gran Canaria's fire brigade, Gutiérrez has become something of an expert in what most people get wrong about wildfires.
When she tells people that planes and helicopters don't actually extinguish fires, she watches their faces register disbelief. The aerial drops look dramatic on the news—water cascading from the sky, flames seeming to shrink. But that's not how it works. The water from above serves a single purpose: it knocks down the intensity of the flames enough that ground crews can move in safely. And it's those crews, the ones you don't see on television, who do the actual work. Gutiérrez is a chainsaw operator, a motoserrista. She uses cutting tools to strip away the fuel—the vegetation—that fire needs to advance. When flames reach a line she and her team have cleared, there's nothing left to burn.
She didn't start out with a chainsaw in her hands. Years ago, she worked in a fire tower, binoculars pressed to her eyes, watching for smoke columns on the horizon. When the chance came to move into active firefighting, she could have stayed in the tower. Instead, she chose the chainsaw, though the prospect terrified her at first. Now she loves it. But the work is brutal in ways that don't translate to the public imagination. The protective gear—the full firefighter suit—offers real protection, but only up to a point. When fire fronts reach intensities of ten thousand kilowatts per meter, no amount of equipment or water makes a difference. At that threshold, the work becomes something closer to suicide. The physical toll is equally severe: the caloric burn is staggering, the dehydration extreme, and the adrenaline surge that follows the fire's end requires its own kind of management, mental as well as physical.
Spain has built one of Europe's most sophisticated wildfire suppression systems. Crews respond fast, they suppress fires quickly, and on the surface this looks like success. But it creates what firefighters call the extinction paradox. By putting out fires so rapidly, the system prevents the natural burn-off of accumulated vegetation. Year after year, fuel builds up in the forest. When a fire eventually escapes control—and they do—it arrives with catastrophic force, often beyond the capacity of any crew to contain from the earliest hours. The solution isn't more water or more helicopters. It's investment in forest management itself: returning land to productive use through grazing and agriculture, creating a mosaic landscape where vegetation is interrupted, where fuel can't build into a continuous carpet waiting to ignite.
Prescribed burns offer one tool in this preventive arsenal. These are controlled fires, set deliberately under precise conditions—specific humidity levels, wind speeds, moisture content—and managed like a shepherd moving a flock. The fire is guided to burn strategic zones before dangerous fuel accumulates. It sounds counterintuitive, fighting fire with fire, but the technique works and costs far less than reactive suppression. Yet even this approach requires expertise and restraint. When conditions shift, the burn stops. Technology alone won't solve this. Gran Canaria has installed a sophisticated thermal camera detection system called Alertagran, and it's powerful. But Gutiérrez won't advocate for abandoning the human watchers in the towers. Technology fails. She remembers the blackout, when communications collapsed entirely.
Climate change has already altered the calendar of fire season. Blazes no longer confine themselves to summer. Winter fires are becoming real. The season stretches, the conditions shift, and the work intensifies. Yet the workforce remains precarious. Gutiérrez holds a discontinuous contract—she works roughly ten and a half months a year, from February through mid-June on prevention work like clearing paths and maintaining reforestation, then June through October on active suppression. In December, her contract ends. In February, they call her back. About eighty-five to ninety percent of forest firefighters work under these same terms. Some colleagues have permanent positions, year-round employment, but they're the exception.
When she removes her helmet, people still react with surprise. A woman. A chainsaw operator. A firefighter. She watches their confusion, the moment when their assumptions crack. She's capable of everything her male colleagues do—carrying water-filled packs, deploying hoses, driving trucks—yet the profession remains coded as male, associated with strength in ways that exclude women despite evidence to the contrary. She wishes she'd had female role models growing up, women in firefighter uniforms, visible proof that the work was possible. The barriers are cultural, not physical. And they persist even as climate change makes the work more urgent and more dangerous than ever.
Notable Quotes
Fires are not extinguished with airplanes and helicopters. The water from above serves to reduce flame intensity so ground crews can enter with tools to remove the vegetation fuel.— Sara Gutiérrez
The solution is no longer about more extinction resources. We need to invest in forest management—creating a mosaic landscape with interrupted vegetation to prevent continuous fuel buildup.— Sara Gutiérrez
The Hearth Conversation Another angle on the story
When you say fires aren't extinguished by planes, what do you mean exactly? Aren't those water drops doing something?
They're doing something, yes, but not what people think. The water from above reduces the flame intensity enough that we can enter the zone safely with our tools. The actual extinguishing happens on the ground, where we remove the fuel—the vegetation—that the fire needs to spread.
So you're not fighting the fire directly. You're removing what feeds it.
Exactly. Once we've cleared a line, when the flames reach it, there's nothing left to burn. That's how you stop a fire from advancing.
You mentioned the extinction paradox. That sounds counterintuitive—that fighting fires well actually makes them worse.
It is counterintuitive, but it's real. We suppress fires so quickly that the forest never gets to burn naturally. Vegetation accumulates year after year. When a fire finally escapes, it's catastrophic because there's so much fuel built up.
And the solution is to let some fires burn?
Not exactly. The solution is prescribed burns—controlled fires set under specific conditions to manage the fuel before it becomes dangerous. It's prevention, not reaction. And it works.
You mentioned that some fires are beyond your capacity to fight. What does that mean practically?
When a fire reaches certain intensities, the thermal radiation is so extreme that we can't safely enter the zone. No amount of equipment protects you. Sometimes the better choice is to retreat and wait for conditions where we can actually fight it.
That must be difficult, stepping back when people expect you to charge in.
It is. People see us retreat and they're angry, confused. But the intensity is real. You have to know when to fight and when to wait.