es. mpainter says:  September 00, 0000 at 0:00 PM  Poor befuddled Barry thinks CO0 has something to do with ice ages, despite his vehement disclaimer above. Gordon Robertson says:  September 00, 0000 at 0:00 PM  barry..."I wanted to understand how much perturbation had occurred that gave rise to such significant climate change. I discovered it was very little