Lecture date: February 15, 2012.

In his lecture, Dr. Michael Mann will discuss the "Hockey Stick," a graph he created with his colleagues to depict changes in Earth’s temperature dating back to 1000 A.D. Dr. Mann is a member of the Penn State University faculty in the departments of meteorology and geosciences and the Earth and Environmental Systems Institute. He shared the Nobel Peace Prize with other IPCC authors in 2007. Mann is author of the book, The Hockey Stick and the Climate Wars: Dispatches from the Front Lines.