Quoted: “You get this very different fire dynamic once it gets into a heavily populated area,” said Anu Kramer, a postdoctoral research associate at the University of Wisconsin-Madison who co-authored the research upon which the estimate is based. “You have cars on fire, propane tanks exploding, and burning houses radiating a lot of heat, which can contribute to neighboring houses igniting. That’s very different from trees and shrubs burning in a forest.”