SCOTUS to review Texas v. New Mexico, Colorado, a decades-long water rights dispute involving the 1938 Rio Grande Compact and federal objections to the states' settlement agreement.

Utah's H.B. 249, prohibiting legal personhood for non-humans including bodies of water, awaits House approval, raising concerns for Great Salt Lake protection.

Nevada Supreme Court upholds state's power to manage groundwater, balancing development with wildlife conservation in landmark ruling.

Arizona's Department of Water Resources is considering designating the Gila Bend Groundwater Basin as an active management area, the first of such an action since 1980.

New Mexico invests $500 million in the nation's first Strategic Water Supply, facing opposition over potential increase in fracking.

The Tohono O’odham Nation, the San Carlos Apache Reservation, Center for Biological Diversity, and Archaeology Southwest sue to stop SunZia clean energy transmission line construction in Arizona's...