"Ground Water Depletion: A National Assessment and Global Perspective" Leonard Konikow, Scientist, U.S. Geological Survey
Abstract: Development of ground-water resources for agricultural, industrial, and municipal purposes greatly expanded during the 20th century, and economic gains from ground-water use have been dramatic. In many places, however, ground-water reserves have been depleted to the extent that well yields have decreased, pumping costs have increased, water quality has deteriorated, aquatic ecosystems have been damaged by reduced ground-water discharge, and land has irreversibly subsided. Some causes and effects of groundwater depletion, however, are neither obvious nor easy to assess. A surprisingly large fraction of ground water pumped from confined aquifers derives from storage losses in adjacent confining layers, but depletion in low-permeability layers is difficult to estimate, rarely monitored, and too often overlooked. A new simplified method for estimating depletion from confining layers was developed, tested, and applied. Results indicate that depletion of storage in confining layers can greatly exceed the depletion from the confined aquifer itself. A nationwide assessment indicates that more than 700 km3 of water was depleted from ground-water systems in the U.S. in the past 100 years. Worldwide, the magnitude of ground-water depletion from storage may already be large enough to constitute a small but measurable contribution to sea-level rise during the 20th century.
Festschrift in honor of Philip Frickey, Alexander F. and May T. Morrison Professor of Law, Berkeley Law
Plenary Session 3 - Indian Law
Moderator: Nell Jessup Newton, Chancellor and Dean, William B. Lockhart Professor of Law, University of California, Hastings College of the Law
Panelists:
Robert Anderson, Director, Native American Law Center, Associate Professor of Law, University of Washington School of Law
Bethany Berger, Associate Professor of Law, University of Connecticut School of Law
Sarah Krakoff, Associate Professor of Law, University of Colorado Law School
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Jerome Waag, Executive Chef of Chez Panisse Restaurant and performance and visual artist, Charlie Hallowell, chef and owner of Pizzaiolo and Boot and Shoe Service in Oakland, Samin Nostrat, Bay Area chef, teacher and writer, and Harold McGee, world-renowned authority on the chemistry of foods and cooking, talk about cooking. Edible Education is a lecture course at UC Berkeley, funded by the Edible Schoolyard Project www.edibleschoolyard.org and the Epstein Roth Family Foundation. Instructor Michael Pollan.