Every year, sometimes in September, but usually in October just before Halloween, when California’s wild vegetation is driest and most combustible, high pressure over the Great Basin and Colorado Plateau unleashes an avalanche of cold air towards the Pacific coast. As this huge air mass descends, it heats up through compression, creating the illusion that we are being roasted by outbursts from nearby deserts, when in fact the devil winds originate in the land of the Anasazi – the mystery people who left behind such impressive ruins at Mesa Verde and Chaco Canyon.There is little enigma to the physics of the winds, though their sudden arrival is always disturbing to greenhorns and nervous pets as well as to lorry drivers and joggers (sometimes scythed by razor-sharp palm fronds). Technically, they are ‘föhns’, after the warm winds that stream down from the leeward side of the Alps, but the Southern California term is a ‘Santa Ana’, probably in ironic homage to Mexico’s singularly disastrous 19th-century caudillo. For a few days every year, these dry hurricanes blow our world apart or, if a cigarette or a downed power line is in the path, they ignite it.
…The loss of more than 90 per cent of Southern California’s agricultural buffer zone is the principal if seldom mentioned reason wildfires increasingly incinerate such spectacular swathes of luxury real estate. It’s true that other ingredients – La Niña droughts, fire suppression (which sponsors the accumulation of fuel), bark beetle infestations and probably global warming – contribute to the annual infernos that have become as predictable as Guy Fawkes bonfires. But what makes us most vulnerable is the abruptness of what is called the ‘wildland-urban interface’, where real estate collides with fire ecology. And castles without their glacises are not very defensible.
And in TomDispatch.com Mike Davis writes about the dynamics of California’s real estate “growth machine” (a sociological theory of urban devleopment) that has produced the pyrogenic landscape of California:
The imbalance of power is greater yet at the county scale. In the wake of the last round of firestorms in 2003, a grassroots alliance of environmentalists and old-time rural residents tried to slow the subdivision and trophy-home juggernaut by limiting residential density to one home per 100 acres: an initiative inspired by the famous precedent of Oregon’s Willamette Valley. They were, however, utterly crushed at the polls (65% to 35%) by a flood of developer money, which disguised itself in ads on television as the voice of embattled “small farmers.”
More recently, on the very eve of the new firestorms, county supervisors endorsed a so-called “shelter in place” strategy that will permit developers to build in the rugged, high-fire-risk backcountry without having to provide the secondary roads needed to ensure safe evacuation. Instead residents would be encouraged to stay in their “fire resistant” homes while fire-fighters defended the perimeter of their cul-de-sac. As scores of fire experts and survivors have pointed out in angry op-ed columns and blogs, this is a lunatic, if not homicidal, scheme that elevates developers’ bottom-lines over human life. Those who have actually confronted 100-foot-high firestorms, driven by hurricane-velocity winds, know that the developer slogan — “It’s not where you build, but how you build” — is a deadly deception.
Meanwhile, the new fire cataclysm seems to be rewarding the very insiders most responsible for the uncontrolled building and underfunded fire protection that helped give the Santa Ana winds their real tinder. While conservative ideologues now celebrate San Diego’s most recent tragedy as a “triumph” of middle-class values and suburban solidarity, the business community openly gloats over the coming reconstruction boom and the revival of a building industry badly shaken by the mortgage crisis. And the Union-Tribune — like London papers after the slaughter that was the battle of the Somme in 1915 — eulogizes the very generalship (all Republicans, of course) that led us into disaster. …