What’s to blame for this summer’s punishing heat waves that are breaking records not just on land, but in coastal waters? Global warming? A high pressure ridge that parked itself over the West? Or both?
California’s big, destructive wildfires tend to come in two varities: Wind driven, such a last year’s deadly Santa Rosa conflagration and the Thomas Fire in Southern California. And what is known as plume-dominated, when a fire’s plume of smoke and ash is big and hot enough to exert control.