He also refused to step down…

I agree, our track record since the establishment of the IPCC has been only very slightly better than “business as usual” scenarios. The current decline of the AMOC current was not predicted to happen as quickly as it has, and the early 2000s IPCC reports didn’t even factor in Greenland ice sheet meltwater. I’m not a climate scientist, I think if we have one or two in this community, their input would be fascinating.

1.5C was never a threat, it was a target. The IPCC produces simplified “stakeholder” report, it would be a superior use of one’s time to just give it a skim than spend time reading clickbaity website titles. https://www.ipcc.ch/assessment-report/ar6/

Policymaker summary report: https://www.ipcc.ch/report/ar6/wg3/downloads/report/IPCC_AR6_WGIII_SummaryForPolicymakers.pdf