I saw this listed in the schedule a while back but knew very little about it. I started watching it when it aired a few weeks ago and it's been a bit of an eye opener. I believed in global warming before I started watching this, but I think it should be mandatory viewing for every right-wing conservative Republican out there that still has their head up their ass on the subject.
What's ironic is that some of the most fervent proponents of global warming are from the same groups that don't believe it's an issue. If you're on the fence about it or just want to know what it's all about, I highly recommend the series. It's a 7-parter airing on Showtime Sunday nights.