I disagree with your post in that this gentleman does indeed repeatedly refer to facts ... just prior to his name calling. Gore’s current game is in the political arena, so heis fair game for this sort of piece.
The purpose of the author’s tirade IS to refute Gore’s claims and to discredit him as a legitimate spokesman for “the movement”. As such his vitriol is well-founded in fact and opinion.
I read this as a quality, humorous and biting opinion piece.
*even if the guy is a certified nut case ;-)