California comedown: how illicit cannabis farms have left a wilderness where ‘you’re lucky to see a lizard’

In the shadow of Mount Shasta in northern California, a sea of makeshift greenhouses and plywood huts sprawls between the conifer trees of the high desert. From the air, many of the polytunnels look in bad shape, their plastic covers torn by the wind to reveal what’s inside: hundreds of cannabis plants packet tightly together,...