Please to read you agree that the warm is followed by an Ice Age. We are in a short term interglacial period of about 12,000 years so far and and it is considered by those expert in the Climate History of Earth this period will last a short time longer.
Short term is maybe another 500-1000 years which, of course, is of no interest to us as we will be long dead.
Where I live was covered by 2 miles of ice and this left quickly as explained here:
http://www.museum.state.il.us/exhibits/ice_ages/
http://earthguide.ucsd.edu/virtualmu...ge2/03_3.shtml
http://www.backwoodshome.com/article...veira86lw.html
http://www.esd.ornl.gov/projects/qen/transit.html
and a different read:
http://www.templeofsolomon.org/orbit...g/variance.htm
An Ice Age is always preceded by a Warm Age.
So the little humans contribute to GW is just bringing on the inevitable Ice Age a bit faster.