The Rio Grande River traverses 2,000 kilometers of the international border between Mexico and the United States. The River and its tributaries are governed by a series of border treaties and institutions, as well as under the domestic laws of each nation. Often lauded for enabling innovative...

In recent years, trans-boundary aquifers have received growing attention in numerous policy-making and negotiating circles. This development suggests an evolution in customary international law for trans-boundary aquifers. This article examines recent international arrangements and...

The dispute over the Silala (or Siloli) Basin, shared by Bolivia and Chile, illustrates the importance of history, the role of indigenous communities, and the effects of differences in national socio-economic philosophies informing water resource management in international negotiations...

A central challenge facing nations today is how to ensure that both people and the natural environment have adequate freshwater to sustain and nourish their existence. In many parts of the world, communities actually compete with nature for dwindling supplies, to the detriment of both. Most...

Water law is the field of law concerned with the ownership, control, and use of water resources, both surface and subsurface. Although most closely related to property law, recent developments in other legal fields, especially in environmental law, have heavily influenced the interpretation,...

The following compilation is substantially reproduced and adapted from a series of essays that appeared in the blog of the International Water Law Project (internationalwaterlaw.org). The series was solicited in response to the unique recent phenomenon in which a number of courts and...

In recent decades, concern has grown over the presence of pharmaceutical and personal care products (PPCPs) in water. This concern stems from the possibility that the presence of PPCPs in water supplies may pose a threat to both human and environmental health. Such threats may be both direct...

More than one-half of the world's population is dependent on ground water for everyday uses such as drinking, cooking, and hygiene. In fact, it is the most extracted natural resource in the world. As a result of growing populations and expanding economies, many aquifers today are being depleted...

When the U.N. General Assembly adopted the Convention on the Non-Navigational Uses of International Watercourses in 1997, it took a decisive step in recognizing the important role that transboundary ground water resources play in human progress and development. In so doing, it also acknowledged...

The Convention on the Law of the Non-Navigational Uses of International Watercourses was adopted by the United Nations General Assembly on 21 May 1997 (UN 1997a). It was drafted to articulate and codify the prevailing state practice and opinio juris – an action taken out of a sense of legal...