"The thesis for anthropogenic climate change is that prior to fossil fuel burning, the terran climate was static." Incorrect. That is not at all what the theory is about. In fact, if you have ever read any of the blogs by actual climate scientists or those that cite them directly, you realize that they speak of past climate change the time.

The theory is roughly that the unprecedented release of co2 (documented fact) and other greenhouse gases is the primary driver of the recent unprecedented rise in global temperatures (also documented fact). Multiple lines of inquiry confirm this. This is also in line w. basic physics and climate models (which are continually checked against the actual data). Every other proposed explanation has been found wanting.