r. Mann is Distinguished Professor of Atmospheric Science and Director of the Earth System Science Center at Penn State University. His research focuses on understanding climate variability and human-caused climate change. He was selected by Scientific American as one of the fifty leading visionaries in science and technology in 2002. He was organizing committee chair for the National Academy of Sciences Frontiers of Science in 2003 and contributed to the award of the 2007 Nobel Peace Prize with other IPCC lead authors. He was awarded the Hans Oeschger Medal of the European Geosciences Union in 2012 and the National Conservation Achievement Award of the National Wildlife Federation in 2013. He made Bloomberg News' list of fifty most influential people in 2013. In 2014, he was named Highly Cited Researcher by the Institute for Scientific Information (ISI) and received the Friend of the Planet Award from the National Center for Science Education. He is a Fellow of the American Geophysical Union, the American Meteorological Society, and the American Association for the Advancement of Science, and has authored more than 200 publications, and three books including Dire Predictions: Understanding Climate Change, The Hockey Stick and the Climate Wars, and The Madhouse Effect with Washington Post editorial cartoonist Tom Toles.