Peter Hernes is a professor at the University of California in Davis, CA, specializing in river biogeochemistry, but extending more broadly into any environment that contains naturally formed organic compounds. As an avid hiker, his interest in the environment is not just professional, but personal. To learn more about Holden Village, visit: www.holdenvillage.orgTo listen to more from Peter Hernes, visit: http://audio.holdenvillage.org/node/5796
