Scientists warn that the devastating fires that killed at least 24 people and destroyed more than 12,000 structures in Los Angeles represent a new type of urban firestorm, distinct from traditional wilderness blazes. In densely populated areas, buildings themselves become fuel, creating a chain reaction of destruction, researchers reported Friday in Nature.
The fires were intensified by steep terrain, powerful winds and a climate pattern of extreme wet-to-dry conditions that created abundant fuel. Researchers say such urban fires are likely to become more frequent as populations expand into wildland areas and climate change accelerates.