I see. So what caused the warming after the little ice age - you know since the planet was cooling for 5,000 prior to the the Industrial Revolution and the rise of CO2 levels?Then you have a problem. Your post-glacial warming does NOT provide the forcing necessary to have produced the observed warming - particularly since the planet was cooling for 5,000 years prior to the Industrial Revolution and the rise of CO2 levels. The Greenhouse Effect acting on the added CO2 in the atmosphere does provide sufficient forcing. Your position is simply unsupportable.