Dr. Roberts reviews an article by Steve Schneider on global warming and what it might mean. Walter Orr Roberts informal series, "Provocations." Each issue consists of provocative comments related to scientific issues that mostly focus on weather, climate, the sun, or near space, with the aim of c... Show moreDr. Roberts reviews an article by Steve Schneider on global warming and what it might mean. Walter Orr Roberts informal series, "Provocations." Each issue consists of provocative comments related to scientific issues that mostly focus on weather, climate, the sun, or near space, with the aim of creating a forum for discussion. Show less