I believe Mr. Gore's function in this global warming campaign is that of a prestiguous spokesman rather than as the expert. That's what I found strange about his testifying on GW to a congressional committee. Obviously he believes in his cause; I simply challenge his expertise.
Interesting novel on global warming and its political/social impact is State of Fear by Michael Crichton. Admittedly, the extremes (e.g., murder) to which the GW adherents will go is a bit of a stretch; but it presents some interesting ideas. And it is a NOVEL - fiction!