But climate models, which have always been wrong, are totally credible.

Modeling the physical world is not analogous to modeling human behavior. The best test of a scientific theory is whether is accurate at prediction. So far, most climate modeling, like weather modeling, has been fairly accurate.

For those incapable, here's the fallacy in this remark. One model on a specific statistic (human population) from 50 years ago was inaccurate. Therefore, all models are inaccurate. Logic is free for the taking.