I love the way Gore argues that acknowledging and acting on the reality of man-made climate change is not a political issue, it is a moral imperative. And I love the way his message is one of hope. At the end of the movie is a fabulous sequence - he has just convinced his audience (if they had any doubt before) of the reality and the seriousness of the problems we face. Then he lists all the amazing achievements of humanity - we fixed the hole in the ozone layer, we defeated fascism, we brought down communism, we ended the cold war, we put men on the moon, all by international co-operation. Illustrated with a montage of newsreel clips and probably accompanied by stirring music (I wasn't concentrating on the music), it makes you feel gosh darned proud to be human. Really. And then he mentions that we already have all the technology needed to solve climate change too. The only thing lacking is the political will to do so. The credits roll, listing a score of ways you can help - all simple like writing to your MP, changing your lightbulbs, or encouraging others to watch the movie.
I encourage you to watch the movie, especially if you still have any lingering doubt about whether man made climate change is real or not. It doesn't beat you around the head with stuff you've heard already. There was much in it that was new to me, and I consider myself fairly well-informed about this topic. It genuinely takes on the concerns of the sceptics and answers them. It's also entertaining. And it's on Sky Box Office (the pay-per-view section of Sky) at the moment, or you can search for cinemas showing it.