Mrs. Green talks with Joaquin Ruiz who wears many hats besides Dean of the College of Science including Vice President of Innovation and Strategy; Executive Dean, Colleges of Letters, Arts and Science; and Professor of Geosciences. As a scientist with equal abilities in chemistry and in geology, Dr. Ruiz is able to address 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. He leads a research team that addresses problems ranging from the origins of life to present-day climate change.