Excellent article from the Skeptic debunking climate change models. Money quote:
What is credible about a prediction that sports an uncertainty 20–40 times greater than itself? After only a few years, a GCM global temperature prediction is no more reliable than a random guess. That means the effect of greenhouse gasses on Earth climate is unpredictable, and therefore undetectable. And therefore moot.
The rapid growth of uncertainty means that GCMs cannot discern an ice age from a hothouse from 5 years away, much less 100 years away. So far as GCMs are concerned, Earth may be a winter wonderland by 2100 or a tropical paradise. No one knows.
— Patrick Frank, “A Climate of Belief”
The same issue of the Skeptic has an article presenting the other side. Read ’em both; judge for yourself who makes the better argument.