Close Only Counts In Horseshoes, Hand Grenades and Global Warming

Michael van der Galien, whose stuff I quite enjoy over at The Moderate Voice, has inadvertently put his finger on what I can't stand about the AGW crowd. And he did it in a single sentence. From Al Gore - Global Warming Expert

Personally, it seems to me that science has proven that it is very likely that human activity increases global warming

[emphasis added]

What constitutes "proof" sure ain't what it used to be.