I’m trading in my Land Rover for a dainty diesel hatchback, installing solar panels on my roof and growing my own organic vegetables. How macho is that?

Global Warming is a bit like HIV and Aids. For some of the early years, HIV and Aids was the pet project, the passion, of a small number of humanitarian activists who tried to scare the wits out of the world with alarmist predictions about empty villages and millions of orphans. Most people couldn’t be bothered with it, apart from another small number of die-hard activists who insisted it was the biggest lie of the modern era.