Yet another great one, Jenny. Erinn makes things happen. I love to contemplate, to talk about things, to complain, but Erinn doesn't waste a second. She is an amazing lawyer, and makes me want to be better and do more. Just wow!
Mike Davis | Ecology of Fear | Metropolitan Books | September 1998
The Case for Letting Malibu Burn
Many of California’s native ecosystems evolved to burn. Modern fire suppression creates fuels that lead to catastrophic fires. So why do people insist on rebuilding in the firebelt?
(Extract)
“Less well understood in the old days was the essential dependence of the dominant vegetation of the Santa Monicas—chamise chaparral, coastal sage scrub, and live oak woodland—upon this cycle of wildfire. Decades of research (especially at the San Dimas Experimental Forest in the San Gabriel Mountains) have given late-twentieth-century science vivid insights into the complex and ultimately beneficial role of fire in recycling nutrients and ensuring seed germination in Southern California’s various pyrophytic flora. Research has also established the overwhelming importance of biomass accumulation rather than ignition frequency in regulating fire destructiveness. As Richard Minnich, the world authority on chaparral brushfire, emphasizes: “Fuel, not ignitions, causes fire. You can send an arsonist to Death Valley and he’ll never be arrested.”
A key revelation was the nonlinear relationship between the age structure of vegetation and the intensity of fire. Botanists and fire geographers discovered that “the probability for an intense fast running fire increases dramatically as the fuels exceed twenty years of age.” Indeed, half-century-old chaparral—heavily laden with dead mass—is calculated to burn with 50 times more intensity than 20-year-old chaparral. Put another way, an acre of old chaparral is the fuel equivalent of about 75 barrels of crude oil. Expanding these calculations even further, a great Malibu firestorm could generate the heat of three million barrels of burning oil at a temperature of 2,000 degrees.
“Total fire suppression,” the official policy in the Southern California mountains since 1919, has been a tragic error because it creates enormous stockpiles of fuel. The extreme fires that eventually occur can transform the chemical structure of the soil itself. The volatilization of certain plant chemicals creates a water-repellent layer in the upper soil, and this layer, by preventing percolation, dramatically accelerates subsequent sheet flooding and erosion. A monomaniacal obsession with managing ignition rather than chaparral accumulation simply makes doomsday-like firestorms and the great floods that follow them virtually inevitable.” The Case for Letting Malibu Burn
Many of California’s native ecosystems evolved to burn. Modern fire suppression creates fuels that lead to catastrophic fires. So why do people insist on rebuilding in the firebelt?
“Less well understood in the old days was the essential dependence of the dominant vegetation of the Santa Monicas—chamise chaparral, coastal sage scrub, and live oak woodland—upon this cycle of wildfire. Decades of research (especially at the San Dimas Experimental Forest in the San Gabriel Mountains) have given late-twentieth-century science vivid insights into the complex and ultimately beneficial role of fire in recycling nutrients and ensuring seed germination in Southern California’s various pyrophytic flora. Research has also established the overwhelming importance of biomass accumulation rather than ignition frequency in regulating fire destructiveness. As Richard Minnich, the world authority on chaparral brushfire, emphasizes: “Fuel, not ignitions, causes fire. You can send an arsonist to Death Valley and he’ll never be arrested.”
A key revelation was the nonlinear relationship between the age structure of vegetation and the intensity of fire. Botanists and fire geographers discovered that “the probability for an intense fast running fire increases dramatically as the fuels exceed twenty years of age.” Indeed, half-century-old chaparral—heavily laden with dead mass—is calculated to burn with 50 times more intensity than 20-year-old chaparral. Put another way, an acre of old chaparral is the fuel equivalent of about 75 barrels of crude oil. Expanding these calculations even further, a great Malibu firestorm could generate the heat of three million barrels of burning oil at a temperature of 2,000 degrees.
“Total fire suppression,” the official policy in the Southern California mountains since 1919, has been a tragic error because it creates enormous stockpiles of fuel. The extreme fires that eventually occur can transform the chemical structure of the soil itself. The volatilization of certain plant chemicals creates a water-repellent layer in the upper soil, and this layer, by preventing percolation, dramatically accelerates subsequent sheet flooding and erosion. A monomaniacal obsession with managing ignition rather than chaparral accumulation simply makes doomsday-like firestorms and the great floods that follow them virtually inevitable.”
Oh my Goddess...this is an eye opener. I didn't realise how bad it is Stateside. Using homeless people like that. Your not telling me the Government doesn't know this is going on, yet it's allowed.
Yet another great one, Jenny. Erinn makes things happen. I love to contemplate, to talk about things, to complain, but Erinn doesn't waste a second. She is an amazing lawyer, and makes me want to be better and do more. Just wow!
Erin is a history-maker, thank you for interviewing her. Our Duty does great work and I heartily recommend them.
Thanks, Matt. I agree and I’m glad you liked the episode as we’re thinking about doing a periodic revisit of the stories out of California.
Mike Davis | Ecology of Fear | Metropolitan Books | September 1998
The Case for Letting Malibu Burn
Many of California’s native ecosystems evolved to burn. Modern fire suppression creates fuels that lead to catastrophic fires. So why do people insist on rebuilding in the firebelt?
(Extract)
“Less well understood in the old days was the essential dependence of the dominant vegetation of the Santa Monicas—chamise chaparral, coastal sage scrub, and live oak woodland—upon this cycle of wildfire. Decades of research (especially at the San Dimas Experimental Forest in the San Gabriel Mountains) have given late-twentieth-century science vivid insights into the complex and ultimately beneficial role of fire in recycling nutrients and ensuring seed germination in Southern California’s various pyrophytic flora. Research has also established the overwhelming importance of biomass accumulation rather than ignition frequency in regulating fire destructiveness. As Richard Minnich, the world authority on chaparral brushfire, emphasizes: “Fuel, not ignitions, causes fire. You can send an arsonist to Death Valley and he’ll never be arrested.”
A key revelation was the nonlinear relationship between the age structure of vegetation and the intensity of fire. Botanists and fire geographers discovered that “the probability for an intense fast running fire increases dramatically as the fuels exceed twenty years of age.” Indeed, half-century-old chaparral—heavily laden with dead mass—is calculated to burn with 50 times more intensity than 20-year-old chaparral. Put another way, an acre of old chaparral is the fuel equivalent of about 75 barrels of crude oil. Expanding these calculations even further, a great Malibu firestorm could generate the heat of three million barrels of burning oil at a temperature of 2,000 degrees.
“Total fire suppression,” the official policy in the Southern California mountains since 1919, has been a tragic error because it creates enormous stockpiles of fuel. The extreme fires that eventually occur can transform the chemical structure of the soil itself. The volatilization of certain plant chemicals creates a water-repellent layer in the upper soil, and this layer, by preventing percolation, dramatically accelerates subsequent sheet flooding and erosion. A monomaniacal obsession with managing ignition rather than chaparral accumulation simply makes doomsday-like firestorms and the great floods that follow them virtually inevitable.” The Case for Letting Malibu Burn
Many of California’s native ecosystems evolved to burn. Modern fire suppression creates fuels that lead to catastrophic fires. So why do people insist on rebuilding in the firebelt?
“Less well understood in the old days was the essential dependence of the dominant vegetation of the Santa Monicas—chamise chaparral, coastal sage scrub, and live oak woodland—upon this cycle of wildfire. Decades of research (especially at the San Dimas Experimental Forest in the San Gabriel Mountains) have given late-twentieth-century science vivid insights into the complex and ultimately beneficial role of fire in recycling nutrients and ensuring seed germination in Southern California’s various pyrophytic flora. Research has also established the overwhelming importance of biomass accumulation rather than ignition frequency in regulating fire destructiveness. As Richard Minnich, the world authority on chaparral brushfire, emphasizes: “Fuel, not ignitions, causes fire. You can send an arsonist to Death Valley and he’ll never be arrested.”
A key revelation was the nonlinear relationship between the age structure of vegetation and the intensity of fire. Botanists and fire geographers discovered that “the probability for an intense fast running fire increases dramatically as the fuels exceed twenty years of age.” Indeed, half-century-old chaparral—heavily laden with dead mass—is calculated to burn with 50 times more intensity than 20-year-old chaparral. Put another way, an acre of old chaparral is the fuel equivalent of about 75 barrels of crude oil. Expanding these calculations even further, a great Malibu firestorm could generate the heat of three million barrels of burning oil at a temperature of 2,000 degrees.
“Total fire suppression,” the official policy in the Southern California mountains since 1919, has been a tragic error because it creates enormous stockpiles of fuel. The extreme fires that eventually occur can transform the chemical structure of the soil itself. The volatilization of certain plant chemicals creates a water-repellent layer in the upper soil, and this layer, by preventing percolation, dramatically accelerates subsequent sheet flooding and erosion. A monomaniacal obsession with managing ignition rather than chaparral accumulation simply makes doomsday-like firestorms and the great floods that follow them virtually inevitable.”
Oh my Goddess...this is an eye opener. I didn't realise how bad it is Stateside. Using homeless people like that. Your not telling me the Government doesn't know this is going on, yet it's allowed.