I have already seen one "emergency bulletin" that claims the data used by Muller was in error, but most real scientists are already backing the human scenario. I'm sure the energy industry will do everything in its power to attack this conclusion, but a significant amount of weight is given to this finding because Muller was not only a prominent skeptic, but one who was funded by the Kochtopus. Via Raw Story:

The founder and director of a climate change study project funded heavily by the Koch brothers, who last year reversed course and said he believed global warming was real, has gone one step further, writing in a weekend op-ed in the New York Times that he is now convinced the phenomenon is caused by humans.

In a piece titled, “The Conversion of a Climate-Change Skeptic,” Richard A. Muller, a University of California, Berkley physicist who founded the Berkley Earth Surface Temperature study (BEST) wrote that his, “total turnaround, in such a short time,” was driven by a new report from the group that concluded for the first time that global warming is a man-made problem. That revelation brings Muller essentially full circle from his stance a few years ago, when he criticized other global warming studies as flawed and questioned whether the Earth was even warming abnormally, dangerously fast at all.

“Science is that narrow realm of knowledge that, in principle, is universally accepted,” Muller wrote. “I embarked on this analysis to answer questions that, to my mind, had not been answered. I hope that the Berkeley Earth analysis will help settle the scientific debate regarding global warming and its human causes.”

The BEST study, he wrote, found that the Earth had warmed by about two and a half degrees over the past 250 years, with the bulk of that spike occurring in the past 50 years. Moreover, he found that, “essentially all of this increase” was likely due to greenhouse gas emissions, a point climate change believers have accepted as fact for years.