AGW ALARMISM BASED ON A LIE: THE HOCKEY DATA WAS COOKED

IF YOU NEED A BASIC PRIMER ON THE HOCKEY STICK DEBUNKING - (WHICH WE EXCERPTED IN DETAIL) - IT'S HERE:

Those of you who saw An Inconvenient Truth may remember, if you weren’t asleep by that stage, the key scene where big green Al deploys his terrifying graph to show how totally screwed we all are by man-made global warming.

This graph – known as the Hockey Stick Curve – purports to show rising global temperatures through the ages. In the part representing the late twentieth century it shoots up almost vertically.

To emphasise his point that this is serious and that if we don’t act NOW we’re doomed, Al Gore – wearing a wry smile which says: “Sure folks, this is kinda funny. But don’t forget how serious it is too” – climbs on to a mini-lift in order to be able to reach the top of the chart. Cue consensual gasps from his parti pris audience.

Except that the graph – devised in 1998 by a US climatologist called Dr Michael Mann - is based on a huge lie, as Sceptics have been saying for quite some time.