I don't really mean intelligence in the technical or usual sense, just in the sense that it applies to a climatologist that makes good predictions in this context.
Anyways, I'm just here to deliver the message, I don't really pretend to know either way--but I do tend to agree with certain experts over others because their arguments are much more robust, given my math background it appeals to my reasonable side.
edit: I thought about it some more. I think I can boil it down to one thing--high information entropy in their written work.