Prediction is very hard, especially when it is about the future.
Past performance is no basis for prediction about future performance.
Try the null hypothesis.
Are you 100% sure that man made effects will have negligible effect on future weather?
Originally Posted by essence
Considering that one (1) volcano popping off puts more CO2 into the atmosphere in one gasp than Man does all year, considering that NONE of the Anthropogenic Global Warming/Climate Change scenarios seem to consider volcanic effects...
... oh, and considering that NONE of them even MENTION 1800-And-Froze-To-Death, The Year With No Summer, which by its very nature argues very strongly against PERMANENT climate change from temporary effects like CO2 and ash...
... I'm trending skeptical.