I was thinking about zombie movies - I do that sometimes - and noticed a theme. The survivors want to flee to Canada.
Granted, I may not have an extensive familiarity with the genre, but the movies I have watched - Resident Evil et al., Night of the Living Dead et al., a rather well-made low-budget film on Syfy this weekend (although it claimed to be about vampires, but they acted more like zombies to me), um, that's all I can think of at the moment, but I'm sure I've watched more - show people trying to get to some mythical colony of survivors in Canada.
Are zombies immune to cold? They're dead, so that doesn't seem likely. Zombies can cover any terrain humans can cover, so that's not a hindrance. Does Canada's smaller population figure into this? Fewer people means fewer potential zombies? Canada has fairly open borders. It's not like a hoard of zombies couldn't overwhelm a few mounties and hello, brothers to the north, welcome to the feast.
In case of zombie attack, I'd go toward South America. It's way easier to survive in a tropical climate than an arctic one. Unless animals also get zombified, but if that happens, a grizzly or wolf pack or family of beavers will kill you just as dead as a leopard or tapir. Granted, I might run into groups of armed non-zombified humans on the way, but isn't that a good thing? If the movies are accurate, maybe not, but human survivors also figure into the "fleeing to Canada" equation. Who knows? Maybe with everyone going north, south will be a wide-open straight shot to relative safety.
Seems the safest place to go is water. If it's a land-based attack, get off the land and wait the thing out. Unless you're a chemist, waiting for nature to restore balance is really the only option in the zombie apocalypse anyway, other than suicide.
Just something to think about on a Tuesday.