Frozen hells

I know that irradiated wastelands and reclaimed ruined cities are the default post apoc settings, though the sunken water logged version is pretty common too.

But what about a world in the grip of nuclear winter or a new ice age caused by a massive climate shift, the world would be as hostile as ever, but will have a kind of mammoth hunter vibe.

Has anyone gone down this route with their game or know of any fiction in this vein?

I saw this game: Frigid Cali is, as they put it, "a New Ice Age".

The thread is a little sparse though.  :(

Our AP from something similar is here http://apocalypse-world.com/forums/index.php?topic=1465.0. Again, it's a bit sparse, but the icy setting worked fabulously.

One of our PBP games is set in southern Greenland at the site of an alien crash.  We've touched on how the cold has shaped our lives, but we're not very far into the game yet.  I expect it'll become a greater, more horrific part of things.