Dr. Roberts continues the theme of his previous "Provocation" to discuss his thoughts about his recent attendance at Robert Redford's Sundance Institute for a conference on global warming. Walter Orr Roberts informal series, "Provocations." Each issue consists of provocative comments related to s... Show moreDr. Roberts continues the theme of his previous "Provocation" to discuss his thoughts about his recent attendance at Robert Redford's Sundance Institute for a conference on global warming. 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