Robert G. Varady

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Successful binational planning and management of water resources is a complex process dependent on informed decision-making across diverse economic, social and political sectors. Additional technical and scientific information is often required as a part of this process. A critical factor in this process is how effectively social and physical scientists can(More)
Several individuals assisted with the production of this report. Allison Howarth conducted all of the data entry for the report, produced the figures and tables, and assisted with data analysis. Denise Moreno assisted with translation and Jennifer Shepherd with layout. Jeremy Diem created the map. Claire Tomkins prepared the first draft of the glossary and(More)
Over the last century, the aperture of water governance has widened beyond local and regional schemes to include a growing number of dynamic organizations and events with a ''global " scope. Until recently, little had been written about the historical development of global water governance, institutional con-nectivity within the field, or key organizational(More)
INTRODUCTION The coupling of human and natural systems poses at least three major types of climate-related risks to human populations and economic activity in western North America: exposure of human communities to • weather extremes—from cyclones to drought, dependence of growing populations • on limited water supplies in this arid region, and climate and(More)
Environmental health and environmental quality issues along the U.S.-Mexico border have been of concern for several years. The enactment of the North American Free Trade Agreement and the presence of the maquiladoras (foreign-owned industries using imported raw materials) have intensified those concerns recently. Efforts to assess these issues are(More)
Groundwater is a critical component of the water supply for agriculture, urban areas, industry, and ecosystems, but managing it is a challenge because groundwater is difficult to map, quantify, and evaluate. Until recently, study and assessment of governance of this water resource has been largely neglected. A survey was developed to query state agency(More)
This paper offers an overview of issues, policies, and approaches to the environmental restoration of the Lower Colorado River Basin and Delta. The observations and analysis are based on a symposium and workshop held in Riverside, California, 29 September to 2 October 2000. The binational Riverside event brought together stakeholders representing most of(More)
Shared, transboundary aquifers along the U.S.-Mexico international boundary are subject to unsustainable levels of water use and water-quality degradation resulting from rapid urban growth as well as climate change and variability. The Upper Santa Cruz and Upper San Pedro alluvial aquifers, shared by the states of Arizona, U.S. and Sonora, Mexico are(More)
This paper reviews regional climate knowledge and vulnerability in the northern Mexico San Pedro River Basin, with a focus on water quality, quantity, and management issues on the Mexican side of the border. A discussion based on the available literature is supplemented by a survey assessing concerns about water and the quality and usability of climate and(More)
Boundaries are a fact of life. We owe much of our understanding of the world, and of biophysical as well as societal interactions, to the order imposed by borders and boundaries. Yet, at the same time, we recognize "borderlands" as important areas that transcend political boundaries. These zones of interaction provide a place for utilizing things held in(More)