Paleoclimatology

In commentary on Dan Farber's post, The new politics of climate change, Paul Hirsch asks:

Can any of the readers of this blog point me to a hindcast of the Pleistocene climate? What I'm looking for is a climate model that models the climate swings over the last 2 million years and, ideally, can be used to forecast future climate change.

Neat question, one that should indeed interest readers of this forum. Herewith an off-the-cuff answer. I'd take a look at the home page of NOAA's paleoclimatology program, particularly the program's archive of climate reconstructions.