Although groundwater depletion is a global phenomenon, India faces the challenge in its severest of forms. Studies by India’s Central Ground Water Board suggest that in some parts of the country, water tables are receding at 1 meter per year and that the majority of water resources in Northwest and South India are overexploited. Furthermore, two-thirds of India’s 1.2 billion people are involved in agricultural work and are therefore especially vulnerable to groundwater depletion and related climate fluctuations.
This study used household survey data from four Kenyan towns to examine the effect of households' characteristics and risk perceptions on their decision to treat/filter water as well as on their choice of main drinking water source. Because the two decisions may be jointly made by the household, a seemingly unrelated bivariate probit model was estimated. It turned out that treating non-piped water and using piped water as a main drinking water source were substitutes.
The regulation of a spatially heterogeneous externality: Tradable groundwater permits to protect streams
Groundwater pumping can reduce the flow of surface water in nearby streams. In the United States, recent awareness of this externality has led to intra- and inter-state conflict and rapidly-changing water management policies and institutions.
This study uses household survey data from four Kenyan towns to examine the effect of households’ characteristics and risk perceptions on their decision to treat/filter water as well as their choice of main drinking water source.
Why are some communities effective at providing safe drinking water, while others fail?
Analytical hydrologic models and the design of policy instruments for groundwater-quality management
This paper explores how analytical hydrologic models can inform the effective design and choice of policy instruments to manage groundwater quality by coupling a social-planner’s problem of optimal groundwater-quality management with analytical solutions from the hydrology literature.
This paper analyses the underlying factors affecting people‘s satisfaction with drinking water provided by community-based organizations in rural Costa Rica.
Diseño y gestión adaptativa de un esquema de pago de servicios ecosistémicos en Copan Ruinas, Honduras
Este artículo presenta el desarrollo de una iniciativa de pagos por servicios ecosistémicos relacionados con la provisión de agua potable en la comunidad de Copán Ruinas, Honduras. La metodología para diseñar e implementar este programa se basa en un enfoque integral y de gestión adaptativa, compuesto por varios componentes: definición de objetivos y diagnóstico general, análisis de condiciones habilitadoras, diseño técnico del programa, implementación y evaluación.
Estimating the Cost and Benefits of Supplying Hydrological Ecosystem Services: An Application for Small-Scale Rural Drinking Water Organizations
For the most part, economic research in Latin America has had a ‘macro’ orientation (e.g., economic growth, monetary and fiscal policy, hyperinflation crisis). This is perfectly understandable because of the macro instability that has affected the entire region for decades and that still remains in many places.
Use of Anthropometric Measures to Analyze How Sources of Water and Sanitation Affect Children’s Health in Nigeria
We used 2008 DHS data sets to construct child height- and weight-for-age Z-scores and used regression analysis to analyze the effects of different sources of drinking water and sanitation on child health outcomes in Nigeria. We also calculated the probability of a child being stunted or underweight as our measure of malnutrition among children aged 0–59 months.
Access to safe drinking water is limited in the Mekong Delta region of Vietnam. Rainwater harvesting (RWH) at household level is among the primary sources of drinking water in the region and is widely practiced throughout Southeast Asia. It has recently been increasingly advocated as an alternative or supplemental approach to household water supply. However, relatively little research has been done on current RWH practices and attitudes.
Closure to “Identifying sets of key nodes for placing sensors in dynamic water distribution networks
The design of a sensor-placement scheme capable of detecting all possible contamination events for a water distribution system before consumers are put at risk is essentially impossible given current technologies and budgets.
Determinants of Performance of Drinking-Water Community Organizations: A Comparative Analysis of Case Studies in Rural Costa Rica
The authors examine the performance of community organizations that provide safe drinking water in rural Costa Rica.
Las organizaciones comunales de abastecimiento de agua y saneamiento en Costa Rica
Read Francisco Alpizar’and Róger Madrigal’ opinion article (Algo más que construir acueductos rurales) in “La Nacion” (January 18th) associated with the EfD Central America Project: Decentralization in water resource management: exploring the determinants of success (Spanish only).
Adaptative design and management of a payment for ecosystem services scheme in Copan Ruinas, Honduras
This article presents a case study of development of a Payments for Ecosystem Services (PES) program related to drinking water in the city of Copán Ruinas, Honduras. (Text in Spanish)
Increasing world demands for water call for new institutions and rules to minimize economic and political conflicts. Growing water quality problems from industry and agriculture only further exacerbate supply problems. Such conflicts can jeopardize economic and, in some parts of the world, even social order.
The use of increasing block water tariffs is widespread throughout developing countries. An increasing block tariff (IBT) is a price structure in which a commodity is priced at a low initial rate up to a specified volume of use (block), then at a higher or several increasingly higher rates for additional block used.
Climate change poses a threat to reliable supplies of drinking water in rural areas. EfD Central America (CATIE) is working with rural communities in Costa Rica, Guatemala and Nicaragua to develop solutions.