"Outside the ability of science to test"? Nothing has been so thoroughly tested throughout the the world as IQ, and the measurements of climate data don't come close to IQ differences in terms of predictability. Whatever fuzziness there is in IQ measurements pales in comparison to the fuzziness in climate measurement, yet an outfit like Mother Jones would declare the former "unsettled" and the latter fully proven except to wacko right-wing "science denialists".