This issue of Southwest Hydrology explores the water-energy nexus from both sides of the issue--how water is used in energy production, as well as how energy is consumed to treat, distribute, and heat water. In addition to a variety of case studies, this publication offers a number of insightful articles on the intrinsic link between water and energy, including the water usage for ethanol production, water/energy comparisons between different types of cooling systems, the far-reaching benefits of water efficiency and much more. To read the Water-Energy Nexus issue of Southwest Hydrology, click here or on the image below.