Climate Models missed important cooling effect

What else are these very complex and unstable models missing?

Spending and economic dislocation of

trillions of dollars today for unclear future benefits is not justified.

https://www.science.org/doi/10.1126/sciadv.adq2465

https://x.com/optimistcskeptc/status/1867217617599279193?s=46&t=Y4fVsDnz2q8uZ3VNKeco4A