Professor Garrison Sposito delivered the prestigious Langbein Lecture, the named lecture of the hydrology section of the annual Fall Meeting of the American Geophysical Union.
The Walter B. Langbein Lecture is awarded and presented annually. Professor Sposito received the Lectureship for his lifetime contributions to the basic science of hydrology and unselfish service promoting cooperation in hydrologic research.
Watch the lecture, "The Soil Underfoot: Green Water and Global Food Security," at the fall 2012 AGU meeting: