Was it "An Inconvenient Truth" or that other one based on the Whitley Strieber book?

From what I've heard, too much warming can cause the ocean currents to shift, shutting down the Atlantic Conveyer (losing us the Gulf Stream warming), resulting in something like an ice age descending on much of North America and western Europe.

If so, Canada will not be such a good place to be anymore. Nor will England or Maine.