‘DO YOU believe,” CNBC’s Joe Kernen asked Scott Pruitt, the Environmental Protection Agency’s new director, in an interview last Thursday, “that it’s been proven that CO2 is the primary control knob for climate?” Replied Pruitt: “No. I think that measuring with precision human activity on the climate is something very challenging to do, and there’s tremendous disagreement about the degree of impact. So no — I would not agree that it’s a primary contributor to the global warming that we see. But we don’t know that yet. We need to continue the debate and continue the review and the analysis.”...