I'd like to point out that this problem can technically be solved by a well-meaning arsonist who's willing to break the law. Simply send a public message to fire departments naming the date and location that a forest fire will start, let the fire departments prepare like they would for a controlled burn, and then set off the blaze. There's some difficulty involved with establishing sufficient credibility for this to work, but it's a weird case where illegal action can accomplish things that operating within the legal system cannot.