Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

Climate

The World’s Wildfire Models Are Getting Torched

“We’re in a downward spiral in Dante’s circle of hell.”

A forest fire.
Heatmap Illustration/Getty Images

Three weeks after wildfire smoke wafted over the Eastern United States, the smoke is back, blanketing the Midwest in a toxic haze. The proximate cause is simple: Canada is still burning at an unprecedented rate.

Over 450 fires are raging across the country, with half of them categorically out of control, according to the Canadian Interagency Forest Fire Center. Canada’s fire season has already become the country’s worst in recorded history.

It’s also an example of a larger trend: Fires worldwide are becoming exponentially larger and more destructive. This has led experts to a harrowing conclusion: The world’s “fire regimes” (i.e the long-term trends and behavior of fire) may potentially become so powerful, so destructive, and so frequent that fire experts can no longer predict their behavior based on current models.

“Some people like to say this is the new normal. I really do not like that term. Normal suggests a steady state. We’re not in a steady state. We’re in a downward spiral in Dante’s circle of hell,” Michael Flannigan, a lead fire researcher at Thompson Rivers University, told me.

Get one great climate story in your inbox every day:

* indicates required
  • Flannigan has researched fires for over four decades. During that time, he found that fire’s overall behavior would shift toward more destructive levels, thanks to climate change, by mid-century. But what he and his colleagues fear now, however, is that these end-of-century-levels are already here.

    Today, fires like those in Canada, are orders of magnitude bigger, far more frequent, earlier in the year, and far more damaging than in the 1980s and ‘90s. (It’s worth pointing out, though, that it isn’t clear whether the Canadian fire are connected to climate change.) And once fires decimate an ecosystem, that area can’t store as much carbon, letting more of it linger in the atmosphere, compounding the effects of global warming. In recent years, the immense damage done by fires in Australia, Greece, Chile, Turkey, and elsewhere has touched this third rail far too many times.

    How did we get here, and what’s the fix?

    One solution might be better fire management, which studies have shown return $6 for every dollar a government spends on it.

    Yet over the past few decades, governments have done the opposite, slowly reducing forest management and fire prevention measures, which often involve controlled burns, opting instead to invest in active fire suppression. At the same time, towns and cities have expanded into fire-prone areas in developed countries like the United States and Canada. This combination has proved catastrophic for places like Paradise, California, in 2018.

    “[In Paradise,] there was almost exactly the same fire in 1965, but nobody was hurt because there was nobody there. Fast forward to 2018, and nearly the whole town burned down under virtually the same weather and fuel conditions,” Peter Moore, a consulting fire management specialist at the United Nations’ Food and Agriculture Organization, told me.

    In fire-prone countries such as the United States, fire economics are outdated and outgunned. The amount the U.S. Forest Service spends on fire suppression leapt from 15 percent of the budget to 55 percent in recent years. U.S. National Interagency Fire Center estimates that fire suppression efforts cost all federal agencies around $4.4 billion in 2021.

    Fire experts suggest investing in preventative measures, like controlled burns that clear out kindling on forest floors or banning people from even entering forests during strong fire weather days, as Canada is doing now..

    FAO’s Moore described the potential benefits of reestablishing traditional fire knowledge as one viable approach to managing fire-prone landscapes, as has been done in Ghana and Australia.

    But what if the world can’t nail down fire management? Experts say: Look for more extremes ahead.

    “It’s like drug resistant bacteria,” Stephen Pyne, an emeritus professor at Arizona State University, told me. “We got rid of all the easy ones, and the ones that are left out or the ones that are beyond our ability to control.”

    Read more about the wildfire smoke:

    What the Smoke Has in Store

    How to Stay Safe from the Wildfire Smoke Indoors

    Why Are the Canadian Wildfires So Bad This Year?

    Green

    You’re out of free articles.

    Subscribe today to experience Heatmap’s expert analysis 
of climate change, clean energy, and sustainability.
    To continue reading
    Create a free account or sign in to unlock more free articles.
    or
    Please enter an email address
    By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
    AM Briefing

    Exxon Counterattacks

    On China’s rare earths, Bill Gates’ nuclear dream, and Texas renewables

    An Exxon sign.
    Heatmap Illustration/Getty Images

    Current conditions: Hurricane Melissa exploded in intensity over the warm Caribbean waters and has now strengthened into a major storm, potentially slamming into Cuba, the Dominican Republic, Haiti, and Jamaica as a Category 5 in the coming days • The Northeast is bracing for a potential nor’easter, which will be followed by a plunge in temperatures of as much as 15 degrees Fahrenheit lower than average • The northern Australian town of Julia Creek saw temperatures soar as high as 106 degrees.

    THE TOP FIVE

    1. Exxon sued California

    Exxon Mobil filed a lawsuit against California late Friday on the grounds that two landmark new climate laws violate the oil giant’s free speech rights, The New York Times reported. The two laws would require thousands of large companies doing business in the state to calculate and report the greenhouse gas pollution created by the use of their products, so-called Scope 3 emissions. “The statutes compel Exxon Mobil to trumpet California’s preferred message even though Exxon Mobil believes the speech is misleading and misguided,” Exxon complained through its lawyers. California Governor Gavin Newsom’s office said the statutes “have already been upheld in court and we continue to have confidence in them.” He condemned the lawsuit, calling it “truly shocking that one of the biggest polluters on the planet would be opposed to transparency.”

    Keep reading...Show less
    Red
    The Aftermath

    How to Live in a Fire-Scarred World

    The question isn’t whether the flames will come — it’s when, and what it will take to recover.

    Wildfire aftermath.
    Heatmap Illustration/Getty Images

    In the two decades following the turn of the millennium, wildfires came within three miles of an estimated 21.8 million Americans’ homes. That number — which has no doubt grown substantially in the five years since — represents about 6% of the nation’s population, including the survivors of some of the deadliest and most destructive fires in the country’s history. But it also includes millions of stories that never made headlines.

    For every Paradise, California, and Lahaina, Hawaii, there were also dozens of uneventful evacuations, in which regular people attempted to navigate the confusing jargon of government notices and warnings. Others lost their homes in fires that were too insignificant to meet the thresholds for federal aid. And there are countless others who have decided, after too many close calls, to move somewhere else.

    By any metric, costly, catastrophic, and increasingly urban wildfires are on the rise. Nearly a third of the U.S. population, however, lives in a county with a high or very high risk of wildfire, including over 60% of the counties in the West. But the shape of the recovery from those disasters in the weeks and months that follow is often that of a maze, featuring heart-rending decisions and forced hands. Understanding wildfire recovery is critical, though, for when the next disaster follows — which is why we’ve set out to explore the topic in depth.

    Keep reading...Show less
    The Aftermath

    The Surprisingly Tricky Problem of Ordering People to Leave

    Wildfire evacuation notices are notoriously confusing, and the stakes are life or death. But how to make them better is far from obvious.

    Wildfire evacuation.
    Heatmap Illustration/Getty Images

    How many different ways are there to say “go”? In the emergency management world, it can seem at times like there are dozens.

    Does a “level 2” alert during a wildfire, for example, mean it’s time to get out? How about a “level II” alert? Most people understand that an “evacuation order” means “you better leave now,” but how is an “evacuation warning” any different? And does a text warning that “these zones should EVACUATE NOW: SIS-5111, SIS-5108, SIS-5117…” even apply to you?

    Keep reading...Show less