I heard that the fires were caused by a campfire and that the state doesn't clear out underbrush and dead wood in the forests.
You'd think that if they subscribed to global warming that they'd do everything they could to prevent heating up the planet. Heck, here in Oklahoma a burn ban is issued by the government, no outdoor fires, no burning of trash, no open flames etc. If they'd try something like that in CA maybe it'd help a little.
I read earlier that they may have been caused by two different powerline failures. Though right now all they have is two power companies that registered failures of some type close to the same time and place the fires started. I'll try to find a link.
*edit*
Ok, found the link I read it from. I know ya'll will groan at the source, but here is where I read it:
https://www.cnn.com/2018/11/12/us/california-wildfires-woolsey-camp-hill-missing/index.html