The funniest thing to me about Al Gore's movie is that, when I saw it, I heard nothing about some of the claims he made, and even though I have no degree in the sciences, and even though I had not studied the specific claims he made ... I knew that many of his claims were simply false.
Like his claim that he could visually detect, with his naked eye, the difference in an ice core sample from before and after the Clean Air Act. Or that his professor could possibly have "intuited" global warming. Or that a graph that shows temperature rising before CO2 levels shows that, he says, CO2 increases cause warming.
Even a lay person can pick this stuff apart, even without doing actual research. That's how obviously bad it is.
Not all of it, of course. Some of it is decent. But far too much of it is just bad, and most of it is extremely alarmist, like his completely nonsensical simulations of flooding that could only happen if ice sheets completely melt, which no one thinks is going to happen.
The part where he notes that the 9/11 memorial is going to be underwater, that we have a "bigger threat than terrorism" -- without noting the fact that no climate scientist believes this will happen -- is a textbook case of extermist, alarmist, propaganda.