F. A. Hayek, the Nobel-Prize-winning economist of the Austrian tradition, provided a possible answer to the question posed in the title. Although Hayek (1899-1992) to my knowledge had nothing to say about the climate controversy, his views on macroeconomics met with a similarly critical attitude from those who practiced economics at a level far, far removed from individual action. He too was in essence called a science denier, in this case the science was economics. Here's what he said when contrasting the method of the natural sciences of "simple phenomena" with the methods of social and...