One of the main accusations launched by climate activists is that anyone arguing against man-made global warming is “anti-science.” They tell us that the science is “settled,” and that anyone who objects is ignoring a blindingly obvious set of facts. But what to do about someone like me? I’m in hearty agreement that the global climate has warmed by roughly one degrees Celsius over the past 150 years. However, my study of the relevant geology and physics leads me to believe that solar variability, not carbon dioxide, is responsible for this warming.