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Thinking Through Soil
Wastewater Agriculture in the Mezquital Valley
Montserrat Bonvehi Rosich and Seth Denizen
Harvard University Press, 2025

To think through soil is to engage with some of the most critical issues of our time. In addition to its agricultural role in feeding eight billion people, soil has become the primary agent of carbon storage in global climate models, and it is crucial for biodiversity, flood control, and freshwater resources. Perhaps no other material is asked to do so much for the human environment, and yet our basic conceptual model of what soil is and how it works remains surprisingly vague.

In cities, soil occupies a blurry category whose boundaries are both empirically uncertain and politically contested. Soil functions as a nexus for environmental processes through which the planet’s most fundamental material transformations occur, but conjuring what it actually is serves as a useful exercise in reframing environmental thought, design thinking, and city and regional planning toward a healthier, more ethical, and more sustainable future.

Through a sustained analysis of the world’s largest wastewater agricultural system, located in the Mexico City–Mezquital hydrological region, Thinking Through Soil imagines what a better environmental future might look like in central Mexico. More broadly, this case study offers a new image of soil that captures its shifting identity, explains its profound importance to rural and urban life, and argues for its capacity to save our planet.

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front cover of Water Politics in Northern Nevada
Water Politics in Northern Nevada
A Century of Struggle
Leah J. Wilds
University of Nevada Press, 2010
Nevada’s Newlands Project, completed in 1915, was the first federally subsidized water reclamation scheme in the U.S. Water Politics in Northern Nevada examines its construction and its many unintended consequences, including deterioration of water quality, destruction of vital wetlands, interruption of ecosystems, and pollution of waterways and ground water. The project also resulted in decades of litigation involving water allocation and the abatement of environmental, social, and economic problems. This book traces the long course of negotiation between competing users that resulted in the signing of the Truckee River Operating Agreement in 2008. It illustrates the challenges of sharing a scarce resource to meet diverse needs and of preserving the resource and the environment for future generations.
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front cover of Water Politics in Northern Nevada
Water Politics in Northern Nevada
A Century of Struggle, Second Edition
Leah J. Wilds
University of Nevada Press, 2014
In northwestern Nevada, the waters of the Truckee, Carson, and Walker river systems are fought over by competing interests: agriculture, industry, Native Americans and newer residents, and environmentalists. Much of the conflict was caused by the Newlands Project, completed in 1915, the earliest federal water reclamation scheme. Diverting these waters destroyed vital wetlands, polluted groundwater, nearly annihilated the cui-ui and the Lahontan cutthroat trout, and threatened the existence of Pyramid Lake.

Water Politics in Northern Nevada examines the Newlands Project, its unintended consequences, and decades of litigation over the abatement of these problems and fair allocation of water. Negotiations and federal legislation brought about the Truckee River Operating Agreement in 2008. This revised edition brings the reader up to date on the implementation of the agreement, including ongoing efforts to preserve and enhance Pyramid Lake. The second edition now also includes a discussion of the Walker River basin, following a major project undertaken to address concerns about the health and viability of Walker Lake. The approaches taken to save these two desert treasures, Pyramid Lake and Walker Lake, are offered as models for resolving similar water-resource conflicts in the West.

Leah J. Wilds’s study is crucial reading for students and scholars of water politics and environmental issues, not just in Nevada but throughout the western United States.
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