Historic 2012 Turnaround by Outspoken Former Global Warming Skeptical Scientist

In 2012, after years of denying global warming and following a careful new study of the data, physicist Richard Muller announced that "global warming is real and humans are almost entirely the cause." The admission by Muller, a professor of physics at the University of California, Berkeley and founder of the Berkeley Earth Surface Temperature project, gained additional attention because some of his research has been funded by Charles Koch of the Koch Brothers, the right-wing billionaire known for funding climate skeptic groups like the Heartland Institute. "We can make the scientific case more solidly than had been made in the past," Muller claims. "I think this does say we do need to take action, we do need to do something about it."