Allocating Fresh Water to Aquatic Ecosystems: The Case of the Colorado River Delta

Abstract

A major challenge for 21st-century water management is to satisfy growing human demands for water while protecting the aquatic ecosystems upon which regional economies and life itself depend. In arid regions with rapidly growing populations and economies, the task can appear daunting. In this article, we attempt to demonstrate that the unique biological assets of the Colorado River delta-estuary, along with the potential economic benefits of a revitalized and protected delta ecosystem, justify efforts to determine and satisfy the water needs of this threatened aquatic environment. We discuss priorities for delta restoration and demonstrate how a mix of policy and legal reforms, economic incentives, and efficiency investments could help generate water supplies to rejuvenate and maintain a healthier delta ecosystem.