Climate scientist Michael Mann, pictured, speaks on “The Hockey Stick and the Climate Wars,” based on his book of the same title, from 7-8:30 p.m. Jan. 15 at the Cleveland Museum of Natural History, 1 Wade Oval Drive, Cleveland. Mann is Distinguished Professor of Meteorology and director of the Earth System Science Center at Penn State. The museum’s website says his talk “will give an insider’s account of climate science, media and politics.” Complete details here. Watch a Mother Jones interview with him here. (Photo: Department of Geosciences, Penn State.)