Well, duh, yes:
Could the best climate models -- the ones used to predict global warming -- all be wrong?
Maybe so, says a new study published online today in the journal Nature Geoscience. The report found that only about half of the warming that occurred during a natural climate change 55 million years ago can be explained by excess carbon dioxide in the atmosphere. What caused the remainder of the warming is a mystery.
But telling that to a global warmist would be as useful as telling a fundamentalist that the Bible isn't the literal word of God.