“By the standards of the megafires and gigafires of the last few years, the Marshall Fire was quite small — 6,000 acres, all told, once it was finally, poetically, brought to an end by snowfall on New Year’s Eve. But following the driest and second-warmest fall in 150 years, the devastation was harrowing out of proportion to its scale, since unlike most wildfire it was not in wildland or forest but was — as the climate scientist Daniel Swain, who lives in Boulder, put it — an ‘urban firestorm.'” David Wallace-Wells in New York Mag: The Return of the Urban Firestorm. What happened in Colorado was something much scarier than a wildfire.