Dr. Roberts explores the debate around if we are actually seeing the effects of greenhouse warming due to CO2 and other gases in recent years. Walter Orr Roberts informal series, "Provocations." Each issue consists of provocative comments related to scientific issues that mostly focus on weather,... Show moreDr. Roberts explores the debate around if we are actually seeing the effects of greenhouse warming due to CO2 and other gases in recent years. 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
