[norwaypinesavage]

One good measure of a model's ability to predict the future is its ability to 'predict' the past. That is, assume it is 1880, and then predict the temperatures in 2009. If sunspot activity is included in the 'prediction', the models can be quite accurate in not only 'predicting' 2009 temperatures, but also the heating and cooling trends that happened in between.

The problem for the Warmists is that there is no residual warming left over to attribute to CO2. That is, virtually all of the temperature anomalies can be explained without including CO2 in the model. When CO2 is included, the models are no longer accurate. That leaves the Warmists with the only option to deny that sunspots are a factor.

[Thermalseeker]

That is, virtually all of the temperature anomalies can be explained without including CO2 in the model.

That's because rising C02 follows rising temperature, not the other way around. This has been shown multiple times over history as revealed in the analysis of numerous ice cores taken in both arctic and antarctic regions covering hundreds of centuries of time....