Well, if that's the case there wouldn't be much science going on.
There might be hope for you yet.
Still, there are other agencies sponsoring real scientists doing real science in this discipline. How about NASA? Are they bowing before a UN committee with their climate models?
There are no other models. Everything is based on the same group of models currently in use. Where there is a lack of understanding of substantive processes involved, and there we lackaccurate and complete measures of inputs to characterise the state vectors for a model, how do you create an accurate model?
It doesn't matter who creates the model the lack of fundamental knowlege of the processes involved and current state to sufficient resolution simply precludes building that accurate model you want to believe in.