Michael E. Mann

Michael E. Mann is an American climatologist and geophysicist who grew up in Amherst, Massachusetts, studied physics and applied mathematics at the University of California, Berkeley, and earned a doctorate in geology and geophysics at Yale. Working with Raymond S. Bradley and Malcolm K. Hughes, he used statistical techniques to reconstruct past temperatures over centuries, and their later study, covering a thousand years, became known as the hockey stick graph. He was a lead author of the observations chapter of the IPCC Third Assessment Report published in 2001, work the panel credited toward the 2007 Nobel Peace Prize it shared with Al Gore. He has taught at the University of Virginia, Penn State, and the University of Pennsylvania, has written more than 200 peer-reviewed publications and six books, among them The Hockey Stick and the Climate Wars (2012), helped found the climate blog RealClimate, and was elected to the National Academy of Sciences in 2020.