Cliff T JohnstonCliff Johnston is a Professor of Earth, Atmospheric and Planetary Sciences and Agronomy at Purdue University, West Lafayette, Indiana USA. He serves as a Deliberate Innovation for Faculty Director at Purdue University. His research program focuses onthe surface chemistry of clay minerals and related environmental particles. Most of his research of focused at the 'molecular scale' where he examines the molecular mechanisms of processes occurring at the mineral-water interface. He has published over 144 journal articles, book chapters and edited books. He has served as President of The CMS (Clay Minerals Societies) and has received numerous awards. He has been invited to give keynote lectures at several conferences and collaborates with researchers throughout the world. Read More Read Less