Let there be no equivocation here: it is the world's scientists - the people tasked with quantifying physical reality - who are saying that climate change is a planetary-scale emergency, and that it is happening on our watch.

In this crucial context, JSO and XR act as our collective conscience, lashing out in the face of institutional inertia and the authorities’ apparent indifference both to this emergency and to human suffering. Their tactics may chafe, but such behaviour is, in at least one sense, wholly rational.

Yeah, but the readers of the Daily Mail say it's always rained, the summers were hotter when they were kids, and that so-called "climate scientists" are talking bollocks. Who to believe?