The politics of building dams and levees and other structures are just part of the policies determining how American rivers are managed or mismanaged. America's well-being depends upon the health of those rivers and important decisions go beyond just dam-building or dam removal. American rivers are suffering from poor water quality, altered flows, and diminished natural habitat. Current efforts by policymakers to change the ways American rivers are managed range from the removal of dams to the simulation of seasonal flows to the restoration of habitat, all with varying degrees of success.

Efforts to restore American rivers are clearly delineated by William Lowry in Dam Politics as he looks at how public policy and rivers interact, examines the physical differences in rivers that affect policies, and analyzes the political differences among the groups that use them. He argues that we are indeed moving into an era of restoration (defined in part as removing dams but also as restoring the water quality, seasonal flows, and natural habitat that existed before structural changes to the rivers), and seeks to understand the political circumstances that affect the degree of restoration.

Lowry presents case studies of eight river restoration efforts, including dam removals on the Neuse and Kennebec rivers, simulation of seasonal flows on the Colorado river, and the failed attempt to restore salmon runs on the Snake river. He develops a typology of four different kinds of possible change—dependent on the parties involved and the physical complexity of the river—and then examines the cases using natural historical material along with dozens of interviews with key policymakers. Policy approaches such as conjunctive water management, adaptive management, alternative licensing processes, and water marketing are presented as possible ways of using our rivers more wisely.

Dam Politics provides a useful and systematic account of how American waterways are managed and how current policies are changing. American rivers are literally the lifeblood of our nation. Lowry has written a lively and accessible book that makes it clear as a mountain stream that it matters deeply how those rivers are managed.

The Great Lakes—containing one-fifth of the standing freshwater on earth, covering some 94,250 square miles with a combined 10,210 miles of shoreline—have suffered greatly from human use and abuse since the advent of the commercial fur trade in the late 1600s. Logging destroys or degrades habitats, urbanization and industrialization pour human and industrial wastes into the water, fertilizers flowing off farm fields feed algae that suffocate other creatures, and ships bring in exotic species that decimate the lakes’  biodiversity. In 1985 when the International Joint Commission identified more than forty pollution hotspots around the lakes, few people had faith the Areas of Concern would be  cleaned up in their lifetime. Indeed, aquatic ecosystem restoration is extremely difficult: only nine of these hotspots have been removed from the infamous list. But progress is being made, and at the helm are local champions, people with a profound love of the region who lead by example and build broad, diverse coalitions in order to realize a common vision. The stories of fourteen of these champions are told here to inspire necessary action to care for the place they call home, so it may be a home to many living creatures for ages yet to come.

This volume is the latest research report from the Harvard Water Program in the series that began with Design of Water-Resource Systems and includes Simulation Techniques for Design of Water-Resource Systems and Streamflow Synthesis. The emphasis is on the systems analysis of the control of water quality in a river basin or watershed. Classical methods such as low-flow augmentation are analyzed as well as novel ones such as instream aeration and piping of effluents from their point of origin to less harmful points of discharge. Particular attention is paid to the economic evaluation of the methods studied and to the resolution of the political conflicts that are likely to arise in a situation where the costs of combating pollution are borne by different people from those who benefit from the improvement.

The main thesis is that the technical, economic, and political aspects of water quality management have to be considered together in the search for effective, economical, and politically acceptable solutions to the problems of deteriorating water quality. Some practical methods for integrating these diverse considerations in a systems analysis are presented.

Sustainability and Water Management in the Maya World and Beyond investigates climate change and sustainability through time, exploring how political control of water sources, maintenance of sustainable systems, ideological relationships with water, and fluctuations in water availability have affected and been affected by social change. Contributors focus on and build upon earlier investigations of the global diversity of water management systems and the successes and failures of their employment, while applying a multitude of perspectives on sustainability.
 
The volume focuses primarily on the Precolumbian Maya but offers several analogous case studies outside the ancient Maya world that illustrate the pervasiveness of water’s role in sustainability, including an ethnographic study of the sustainability of small-scale, farmer-managed irrigation systems in contemporary New Mexico and the environmental consequences of Angkor’s growth into the world’s most extensive preindustrial settlement. The archaeological record offers rich data on past politics of climate change, while epigraphic and ethnographic data show how integrated the ideological, political, and environmental worlds of the Maya were.
 
While Sustainability and Water Management in the Maya World and Beyond stresses how lessons from the past offer invaluable insight into current approaches of adaptation, it also advances our understanding of those adaptations by making the inevitable discrepancies between past and present climate change less daunting and emphasizing the sustainable negotiations between humans and their surroundings that have been mediated by the changing climate for millennia. It will appeal to students and scholars interested in climate change, sustainability, and water management in the archaeological record.
 
Contributors: Mary Jane Acuña, Wendy Ashmore, Timothy Beach, Jeffrey Brewer, Christopher Carr, Adrian S. Z. Chase, Arlen F. Chase, Diane Z. Chase, Carlos R. Chiriboga, Jennifer Chmilar, Nicholas Dunning, Maurits W. Ertsen, Roland Fletcher, David Friedel, Robert Griffin, Joel D. Gunn, Armando Anaya Hernández, Christian Isendahl, David Lentz, Sheryl Luzzadder-Beach, Dan Penny, Kathryn Reese-Taylor, Michelle Rich, Cynthia Robin, Sylvia Rodríguez, William Saturno, Vernon Scarborough, Payson Sheets, Liwy Grazioso Sierra, Michael Smyth, Sander van der Leeuw, Andrew Wyatt