And to escape, we need more fire, not less.
More low-intensity fires could have prevented the megafires that turned 700,000 acres of forest into a “moonscape” and incinerated more than one billion board feet of timber. That is what the Confederated Tribes of the Colville Reservation claim in their lawsuit against the US government. There is good evidence backing them up.
Even with more flexible policy and some redistribution in funding, federal and state wildfire response still does not follow science-based recommendations to allow wildfires to burn when conditions are low-risk and to use intentional controlled fires to restore forest health and climate resiliency.
Of course, there is no one-size-fits-all solution to our wildfire problem. As William Bagley, a seasoned fire professional and emergency manager for the Klamath Tribes, told me,
“Fire’s not rocket science. It’s a lot more complex.”
Still, it’s clear—especially in seasonally dry inland ecosystems—that forests need more fire, not less.
CASCADIA IS STUCK ON A WILDFIRE TREADMILL
Cascadia, along with the rest of the West, is caught in a vicious circle: the more we suppress fires, the worse they get; and the worse fires get, the more we suppress them. It’s such a ubiquitous pattern, and such an entrenched and difficult problem, that it deserves naming. Let’s call it the wildfire treadmill. (Sightline has illustrated the concept above. A higher-resolution version is available for download)
Wildfires have become larger and more ferocious than previously imaginable, and we are seeing more of the megafires that destroy communities and that no amount of firefighting can contain. As the planet warms, most areas in western North America will experience a doubling or more of their fire risk.
The three culprits that put us on the wildfire treadmill are:
Climate change and the accompanying increase in those hot and dry days with strong winds that spread fire rapidly and make fire extinction very difficult, called “fire weather”;
The buildup of “fuels” in the forest: small trees, shrubs, debris, and dead wood; and
The expansion of the wildland–urban interface (WUI), where houses meet or intermingle with undeveloped wildland vegetation.
Ironically, the accumulation of forest fuels is a direct consequence of state and federal policies that since the 1600s in one Canadian province and the early 1900s nationwide in the United States have mandated the immediate suppression of all wildland ignitions. For decades, indigenous Americans caught using cultural fire were often jailed or worse.
Now we face a daunting predicament: having snuffed out nearly every ignition for over a century, we’ve suppressed ourselves into a corner where even a small and innocuous flame can explode into an uncontrollable megafire. So, we continue to fight nearly every fire.
A FIRE IN TIME SAVES NINE
Small, low-intensity fires now, while unpleasant and dangerous, mean fewer large, high-intensity fires later. It’s when a fire is hot enough to burn the entirety of mature trees, called crowning or torching, that higher-intensity fire can take off. At this point, the fire can spread embers across long distances and can become a “crown fire” that spreads from treetop to treetop.
Historically, smaller and patchier fires frequently swept through Cascadia’s seasonally dry forests, clearing out forest fuels. Indeed, throughout the bioregion, much of this fire was intentionally started by indigenous people who used it to prevent more dangerous fires, stimulate seed germination, recycle nutrients, and create open habitats for the plants and animals they relied on for food and fiber.
These lower-intensity fires travel along the ground, fueled by grasses, fine fuels, and small trees. Fire-adapted species, such as the ponderosa pine, with its thick fire-resistant bark, can survive low- and mixed-intensity fires. And these fires, every 15 to 20 years, make it unlikely for any one ignition to grow into a high-intensity fire. Th...