Climate models never work because they are fed data filtered to produce a desired result, rather than unfiltered data.
Such models will always fail because overall climate is unpredictable.
Climate models have way too many variables to yield an accurate result within reasonable error bands.
The folks who design and run these models make biased assumptions for many variables, and the assumptions drive the desired result.
Not my guessing, btw, I happened to be seated next to (an honest) climate expert on a commercial flight a few years back. I learned much.