Can science really predict the future of our climate? There are essentially four (not two) schools of thought in this controversy: In this class we will be the jury and look objectively at the data, assess the merits of each school’s scientific interpretation of this same data, eliminate the show biz and, hopefully, reach our own decision about what the facts are and what actions might be appropriate. Dr. Kaufman has an extensive background in thermodynamics and has taught courses on weather.