Drive 'em crazy... no wait, they already ARE crazy
well, add on a few bits of kindling
Argumentum ad Verecundiam, otherwise known as the "argument from authority." This is a favorite trick especially of the green movement—as in, "The National Academy of Sciences says that man-made global warming is real so it must be," or, "The Intergovernmental Panel on Climate Change represents the expert views of 2,500 of the world's top scientists: who are you to say they're wrong?" Reply that all it takes is one scientist to falsify a hypothesis: in fact, that's exactly how science is done, with one paradigm replacing another: think Copernicus (or Galileo) and the heliocentric theory of the solar system. Why is it, dear liberal, that you always want to close off debate whether it's about science or anything else in the name of your authorities and political correctness? Is it because liberals believe (as William F. Buckley noted) that everyone has a right to his own opinion—and then are shocked and outraged to find there is another opinion?