Five thousand years of rising and falling civilizations flow through Fagan's sweeping survey of man's ability to harness water. From the stirrings of agricultural settlements in the Euphrates Valley to the canny manipulation that sent the Owens River's flow to a tiny California town called Los Angeles at the start of the 20th century, Fagan (The Great Warming), an archeologist, digs down into our relationship to water sources, pointing out that "water is capricious and powerful, far more masterful than the humans and animals that depend on it." However, this survey veers unevenly, offering vivid descriptions of the hazards of channeling water in prehistoric northern Iraq, of water distribution in traditional Balinese governance structures, of Middle Eastern irrigation engineering that becomes mired in measurements and dimensions.