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The Santa Cruz River that once flowed through Tucson, Arizona is today a sad mirage of a river. Except for brief periods following heavy rainfall, it is bone dry. The cotton-wood and willow trees that once lined its banks have died, and the profusion of birds and wildlife recorded by early settlers are nowhere to be seen. The river is dead. What happened? Where did the water go? As Robert Jerome Glennon explains in Water Follies, what killed the Santa Cruz River - and could devastate other surface waters across the United States - was groundwater pumping. From 1940 to 2000, the volume of water drawn annually from underground aquifers in Tucson jumped more than six-fold, from 50,000 to 330,000 acre-feet per year. And Tucson is hardly an exception. In a striking collection of stories that brings to life the human and natural consequences of our growing national thirst, Glennon provides an occasionally wry and always fascinating account of groundwater pumping and the environmental problems it causes. Glennon sketches the culture of water use in the United States, explaining how and why we are growing increasingly reliant on groundwater. He uses the examples of the Santa Cruz and San Pedro rivers in Arizona to illustrate the science of hydrology and the legal aspects of water use and conflicts. Following that, he offers a dozen stories - ranging from Down East Maine to San Antonio's River Walk to Atlanta's burgeoning suburbs - that clearly illustrate the array of problems caused by groundwater pumping. Each episode poses a conflict of values that reveals the complexity of how and why we use water. These poignant and sometimes perverse tales tell of human foibles including greed, stubbornness, and, especially, the unlimited human capacity to ignore reality. As he explores the folly of our actions and the laws governing them, Glennon suggests common-sense legal and policy reforms that could help avert potentially catastrophic future effects. Water Follies, the first book to focus on the impact of groundwater pumping on the environment, brings this wide-spread but underappreciated problem to the attention of citizens and communities across America.