Myth. The models do quite well especially considering the complexity and the computation limitations of modelling such a big system in fine enough detail. They have been calibrated against geological records and are good enough to show we need to take urgent action.But the math used by the gloom-and-doom crowd regarding global warming / global climate change simply DOES NOT PREDICT REALITY. The temperatures continue to diverge - downward - from the predictions made by those IPCC equations.
Decades ago it was projected that the temperature of the planet would rise substantially. It has risen substantially and continues to do so. You say they are proven wrong because it hasn't risen precisely as projected.
Where are your models that show the temperature rises are due to normal cycles? You don't have them of course because "natural cycles" is nothing more than an unsubstantiated handwave by denialists.
All known natural cycles have been accounted for. We are reaching a solar minimum and temperatures are not falling. You simply refuse to accept any evidence as sufficient. You will make further excuses about "unknown factors" as we move into the 2020s and temperatures continue to rise.
You advocate wasting further time by continuing to burn fossil fuels as usual. And how do you suppose we turn around suddenly when it becomes completely undeniable that climate change is costing trillions and making much of the planet uninhabitable?
Truth is you are an old man and don't care to change because you won't be much affected. Please ensure your grand children know exactly where you stand on this issue so they will treat your memory with the deserved disdain.