Don't bother feeding the trolls who always bleat that climate models are wrong. Of course they're wrong. Everything is necessarily wrong at some level of detail. The demand for perfect climate models is every bit as much pseudo-science as Creationists going on about missing links. Every gap in the fossil record is a missing link. And if you find an intermediate fossil within such a gap, you now have two gaps, one on each side of it. Creationism is, in the memorable words of Wolfgang Pauli,
Not even wrong.
We have a new set of climate models coming out, and new techniques for validating and improving them, under the name Coupled Model Intercomparison Projects. Basically, that means that we are taking all of the best models, harmonizing their inputs, and doing massive computer runs to see which features of the models give us the most accuracy with the greatest efficiency. Then we can use those results to build and test improved models, and perhaps use them to guide policy.
That's where it has all fallen down in the past, of course.
The good news, however, is that every time we improve the models, we get better information on what path to take to deal with the problem, and the possible trends toward improvement. Models have told us how much we have to cut carbon emissions to stay within various temperature targets. When the US can put in a government that cares about such things, we will actually be able to discuss the urgency of the problem, and the level of investment needed.
What good are climate models that Denialist trolls always dismiss, along with every policy to do anything about the Climate Crisis? Well, what good are Denialist trolls? The answer to either question is more questions: Good for whom? For what purpose? What's it to me? I'm glad you asked. Good for you. 😄😄😄😄😄