I still remember in 2021 the IPCC wanted to release a report that said "incremental changes are not a viable solution to climate change"
The report was deemed too political and blocked so the most dedicated scientists in the IPCC quit in protest and leaked the report anyway.
https://scientistrebellion.org/about-us/leaked-ipcc-report/
They were significant figures who went on to join the Scientists Rebellion group.
Feels like a lifetime ago...