William Happer, Ph.D., is the Co-Founder and Chair of the CO2 Coalition, a 501(c)(3) nonprofit advocacy organization seeking to "engage in an informed and dispassionate discussion of climate change, humans’ role in the climate system, the limitations of climate models, and the consequences of mandated reductions in CO2 emissions." Will is also Professor Emeritus in the Department of Physics at Princeton University and is a specialist in modern optics, optical and radiofrequency spectroscopy of atoms and molecules, radiation propagation in the atmosphere, and spin-polarized atoms and nuclei. You can find the CO2 coalition online (co2coalition.org).