Since we won't be around to see it, The History Channel has assembled a feature-length documentary depicting how things might go down post-humans. As the introduction to "Life After People" points out, this is not a story of how we vanish (although it strongly hints that likely will be by our own design), but what will happen after we do.
The bottom line: The world turns into one wet jungle. Within a few hours of a mass-extinction event, all the lights would go out, and nuclear reactors would shut down in two days, leading to a planet-wide blackout. Underground tunnels would fill with water roughly 24 hours after that. Parking lots and streets become the territory of plant life.
Houses? "Are now only useful for kindling," intones the narrator. Animals? "Will go bananas," he says.
Through top-quality computer animation, "Life After People" delivers on the level of a doomsday spectacular, with more crumbling landmarks and general disaster scenarios than the entire Roland Emmerich filmography.
The only thing is, it makes its point quickly. After about a third, one feels "Life" is too long.