Do you think there is more that I can add to the list of who this incredible man is? Yes, I can say that he and his team are literally changing the world every day. As a scientist with equal abilities in chemistry and in geology, Dr. Ruiz addresses many first-order problems in the Earth Sciences, such as the development of new isotope systems for studying ore deposits and the tectonic processes involved in the growth and evolution of Mexico. His research team addresses problems ranging from the origins of life to present-day climate change. This show sponsored by the University of Arizona.