During the last 25 years, more than 100 million dollars have been spent by organizations attempting to change the American public’s thinking about climate change, in the hopes of forcing government to take serious action on the issue.  In this presentation, Dr. Krosnick will review experimental evidence assessing whether people are persuaded by (1) natural scientists recommending political strategies on the issue, (2) an array of Republican leaders expressing concern about climate change and a desire to attenuate it, (3) a meteorologist embedding messages about climate change’s existence and threat into television news broadcasts, and (4) Superstorm Sandy’s devastating effects.  To some, the results of these studies are shocking and an important wake-up call.