Really, which skeptic was that?
Oh, the “skeptic” that said this 4 years ago?
But just how much of a “skeptic” was Muller? Here’s the opening from his 2008 interview with Grist.org:
Grist: What should a President McCain or Obama know about global warming?
Muller: The bottom line is that there is a consensus — the [Intergovernmental Panel on Climate Change] — and the president needs to know what the IPCC says. Second, they say that most of the warming of the last 50 years is probably due to humans. You need to know that this is from carbon dioxide, and you need to understand which technologies can reduce this and which can’t. Roughly 1 degree Fahrenheit of global warming has taken place; we’re responsible for one quarter of it. If we cut back so we don’t cause any more, global warming will be delayed by three years and keep on going up. And now the developing world is producing most of the carbon dioxide.