The IPCC had scientists who didn't approve of what was being imposed but were too scared to say anything in case it affected their governmental funding. I believe most wouldn't say anything publicly but there were a few who did. The Science has not been settled despite what the politicians and media proclaim. In fact, science seems to have been pre-empted and politics have taken over (see Covid as an example). No one really knows what the hell is going on and until the whole cancel culture is irradiated, and people are free to express their beliefs, opinions, theories etc., we likely won't ever know. After all, there is too much money for those involved (hey Al Gore) to make and to squeeze from the rest of us.