In a recent column in the ”’Hawaii Reporter”’ “Global Warming: A Lot of Hot Air” (7/25/2005), Grant Jones criticized my column on global warming, because, in his opinion, it relied entirely on an ad hominem argument. By this he meant that I was expressing skepticism of certain climate contrarians based on their financial affiliations with the petroleum industry rather than the validity of their scientific claims. Apparently, Jones believes it is unwise, unfair, and unethical to consider another person