When Paradise burned down last year, it made the Camp Fire the most destructive and deadly in Californian history. A few months earlier the nearby Ranch Fire was the largest. In southern California, a series of chaparral fires have brought danger to towns along the state’s coast. And the statistics show that large, dangerous fires have been increasing for decades. But the reasons are not simple. Roland Pease meets some of the experts trying to work out what is to be done.

Producer: Roland Pease

Image: A man watches the Thomas Fire above Carpinteria, California,