The age of the urban inferno is here

In general, we’ve long believed the built environment offered formidable firebreaks and worried over what might be lost when fires passed near homes as a form of tragic collateral damage. But increasingly, fires emerging hotter and more intense from the natural landscape are burning human structures not as collateral but as fuel, jumping from home to home as earlier fires would jump from tree crown to tree crown, with vegetation, Swain told me when I interviewed him in the wake of the Marshall fire for New York magazine, acting only as a wick. These firestorms may seem like a harbinger, he said, but they are also a throwback, to a time a century or more ago when towns and cities, in a time of wood-frame buildings and premodern firefighting, regularly stared down the threat of incineration by flame.