I was alerted to this excellent article by Dr. Patrick Frank in the Sceptic:
by a post on the Watts Up With That blog:
The original YouTube video is here:
In the comments section of the blog post, Javier points out:
What this diagram does NOT show is that the temperature ranges predicted could be much worse than currently assumed! It simply and powerfully demonstrates that climate modelling is flawed. It also shows that public faith in climate models is fundamentally misplaced because policy makers have no idea at all that this level of uncertainty arises from the models.
A secondary take out from his analysis is that his own simplified Model of Models simulates to a close approximation the results of all the existing publicly funded climate models at a tiny fraction of the cost. At the very least it would be better to throw every one of those expensive models away along with their supercomputer infrastructure and save tax payers a huge expense moving forwards. The results would still be meaningless but at least we could afford to fund some real research with the money saved.