We fell in love with the power and speed that fossil fuels brought us. But the price being paid in California, and around the world, has become too high

Zero per cent contained. In layperson’s terms, that means “out of control and burning at will”. It’s a common designation for a wildfire – in the wild. But when a fire like this enters an urban area such as Los Angeles County, the most highly populated metropolitan area in the US, it becomes an exploding bomb, and this one has been detonating since last Tuesday.

By now, the energy release from this wind-driven, drought-fuelled firestorm turned urban conflagration is into the megatons, and the nuclear-scale destruction is there for all to see: block after block and neighbourhood after neighbourhood levelled – roughly 12,000 structures destroyed or rendered uninhabitable, 55 sq miles of city and mountain burnt, nearly 200,000 residents evacuated – so far. There is more to come.