Could more controlled burns have stopped the L.A. fires?They can be an effective wildfire prevention tool — but not always.

Once the fires stop burning in Los Angeles and the city picks itself up from the rubble, the chorus of voices asking how such a disaster could have been prevented will rise. In California, the answer to that desperate query is so often “better forestry management practices,” and in particular “more controlled burns.” But that’s not always the full story, and in the case of the historically destructive L.A. fires, many experts doubt that prescribed burns and better vegetation management would have mattered much at all.