https://www.ipcc.ch/report/ar6/syr/downloads/report/IPCC_AR6...
You don't.
there's a sort of person who would look at these false predictions and willingly not update, but instead move the goal post.
here's the reality: there's small subset of unfortunate people who still cling on to this model despite being demolished by reality. they are not the consensus fortunately - each field has some strange people believing some wild ideas. what's interesting is what the public chooses to side with.