I watched An Inconvenient Truth, which was pretty good. But I thought the book was better, because I didn't have to listen to so many self-congratulatory platitudes. Interesting series of suggestions at the end, but I was annoyed that it encouraged the use of biofuels, which seem like an utter waste of resources.
The suggestion that Lake Chad has been destroyed because of global warming seems to be untrue, based on some of the reading that I have done.
Gore should have suggested that we eat less meat, buy fewer processed foods, and buy less stuff. The former consumes a great deal of energy (unless it is grass-fed), and I bet food processing does too. Finally, capitalism itself (more accurately, consumption for the sake of consumption) is responsible for a lot of the energy we consume, because all of the environmental damage is externalized. My conclusion is:
Consume less stuff. Consume less food. Consume less energy.