That is the whole problem with these climate scientist. None of them can prove their work.
The world’s climate is simply too large and complex to make educated predictions of how the system works.
The computer models are simply too simplistic to make predictions.
Besides that computer models are not intended to make predictions they are intended to test theories. The proper use of a computer model is to test a theory against reality and not to make predictions.
A climate computer model should be used to test the climate theory against known data from the past not predict future changes.
Even if not provable, at least publish the raw data and methods including the computer source code. No more Mann-style “the dog ate my data” excuses.
Never neglect the troubles associated with the predictions of the future states of chaotic systems.
Models . . . Precisely the problem. If climate change is settled science, there would be exactly ONE model. All future models must completely agree with the prototype model, or the former model is wrong. Which means, nothing is settled.