Dr. Michael E. Mann is Distinguished Professor of Meteorology at Penn State University, with joint appointments in the Department of Geosciences and the Earth and Environmental Systems Institute (EESI). He is also director of the Penn State Earth System Science Center (ESSC).

Dr. Mann received his undergraduate degrees in Physics and Applied Math from the University of California at Berkeley, an M.S. degree in Physics from Yale University, and a Ph.D. in Geology & Geophysics from Yale University. His research involves the use of theoretical models and observational data to better understand Earth's climate system.

Dr. Mann was a Lead Author on the Observed Climate Variability and Change chapter of the Intergovernmental Panel on Climate Change (IPCC) Third Scientific Assessment Report in 2001 and was organizing committee chair for the National Academy of Sciences Frontiers of Science in 2003. He has received a number of honors and awards including NOAA's outstanding publication award in 2002 and selection by Scientific American as one of the fifty leading visionaries in science and technology in 2002. He contributed, with other IPCC authors, to the award of the 2007 Nobel Peace Prize. He was awarded the Hans Oeschger Medal of the European Geosciences Union in 2012 and was awarded the National Conservation Achievement Award for science by the National Wildlife Federation in 2013. He made Bloomberg News' list of fifty most influential people in 2013. He is a Fellow of both the American Geophysical Union and the American Meteorological Society.

Dr. Mann is author of more than 160 peer-reviewed and edited publications, and has published two books including Dire Predictions: Understanding Global Warming in 2008 and The Hockey Stick and the Climate Wars: Dispatches from the Front Lines in 2012. He is also a co-founder and avid contributor to the award-winning science website RealClimate.org.

Lee R. Kump is a Professor in the Department of Geosciences, and an associate of the Earth System Science Center and Astrobiology Research Center at the Pennsylvania State University. A native of Minnesota, he received his bachelor's degree in geophysical sciences from the University of Chicago in 1981, and his Ph.D. in marine sciences from the University of South Florida in 1986. While in Florida he spent two summers as a geologist with the United States Geological Survey's Fisher Island Station. In August of 1986 he joined the faculty at Penn State.

Dr. Kump is a Fellow of the Geological Societies of America and London, and a member of the American Geophysical Union, the Geochemical Society, and the Geochemistry Division of the American Chemical Society. His research has been funded by the Environmental Protection Agency, the National Science Foundation, NASA, the Gas Research Institute, the Petroleum Research Fund of the American Chemical Society, and Texaco. Dr. Kump became Associate Director of the CIAR Earth System Evolution Program in 2004. Dr. Kump's primary research effort is in the development of numerical models of global biogeochemical cycles. His early work focussed on the carbon and sulfur cycles, and on the feedbacks that regulate atmospheric oxygen levels. More recently his emphasis has shifted to the study of the dynamic coupling between global climate and biogeochemical cycles. He studies the long-term evolution of the oceans and atmosphere, using a combination of field work, laboratory analysis, and numerical modeling.