I rented "The Day After Tomorrow" and I'm not sure I understood it. I didn't know too much about the film ahead of time, except that it involved global warming triggering an ice age. How is that possible? Well, according to the Dennis Quaid character, melting polar icecaps upset the oceans' salt balance, which disturbed the Atlantic current, which in turn, caused cooling of the northern hemisphere, or some such hokum. He says that this was set off by industrial greenhouse gasses and he also says that a similar disturbance set off a previous ice age.

Am I missing something? Were there a lot of greenhouse gas emissions in prehistoric times? On "The Flintstones," they pretty much relied on dinosaur power. I don't remember there being any heavy industry in Bedrock.

I do like the way the bald fat Vice President (obviously modeled after Dick Cheney) admits that he was wrong about global warming and apologizes. That Cheney would admit he's wrong is a little implausible, but then it is a science fiction movie.

Anyway, if anyone understands "The Day After Tomorrow," please explain it to me.