"what do you make of the far greater number of scientists who consider it true?"
What about the far greater number of shittos that say chazal's science was true?
"Personally, I am far from an expert on climate change. But I do know how to determine the majority opinion of experts, and I see no reason to dispute them any more here than with the age of the universe."
The problem is, R' Slifkin, if we applied a similar process of reasoning to those gedolei HaTorah who banned your books, we might argue that their view of a 6000 year old universe, etc. is the "correct one," (at least with regards to what constitutes the correct reading of Genesis) and your views are "fringe," and hence not true.
I would like to make the following points:
1. In the times of the Rishonim, the overwhelming majority view was that Chazal's statements about the natural world are not infallible.
2. In the times of the Rishonim, the overwhelming majority view was that we should interpret Bereishis in such a way that it does not conflict with proven science.
3. You don't need to follow the majority if you are qualified to have your own opinion!
4. If you are not qualified to form your own opinion, it makes sense to follow the majority of those who are qualified to form an opinion, all else being equal. There can be factors which change this.
5. Many people, myself included, do not agree to the popular view that great Talmudists and halachists automatically qualify as great experts on the interface of Jewish theology and science.
(This is not a post about climate change - please keep the comments away from that topic. If you want to discuss climate change, do so on the earlier posts.)