What's worse is that modelling is used in every area of science all the time. However, when it comes to something that has an impact on people's lives they do often choose to reject the science - or at least a particular subset of the population does. It's often the result of rejecting what is felt to be an imputation of guilt, which then leads to rejection of the science in order to back up the rejection of guilt. Alternatively, it can be a rejection of social responsibility - which is why libertarians almost invariably reject the science, and many conservatives as well.
Still, if it's any comfort, the policy debate is largely over. The opposition being mounted by "skeptics" is a rearguard action, and dwindling as places like the Maldives are actually abandoned as a result of rising sea levels. The pity is that it's already too late to prevent most of the consequences.
Never let the best be the enemy of the good.
A scientist would probably apply Occam's razor here, as follows:
We observe that in 99% of cases the large majority of people people appear to accept statements made by "scientists"
In the case of dangerous climate change people don't listen.
One of the frequently glossed-over facts is that the study of this hypothesis spans many disciplines. Witness the utterly atrocious statistics applied in the area of climate reconstruction.
- Hypothesis #1: "People are stupid"
- Hypothesis #2: "The case is not yet made sufficiently to convince intelligent people"
Another problem is the overstepping of some "scientists" who claim authority on subjects way outtside their competence. Look at James Hansen. He hasn't the most basic qualifications or experience to be making normative policy statements, but he does and he insults people who don't agree with him.
The simple fact is that there is a cohort of people who work in various fields connected to climate science who bleieve in dangerous anthropogenic climate change.
But there are others who work in such fields and others who are experts in some of the fields, but don't work in climate change, who think it a poorly established hypothesis.
I know who I think is stupid.