Federal scientists develop plan to clean 16 million tons of uranium waste contaminating Colorado River groundwater near Moab. Draft cleanup plan due 2027.

Major water agencies from Arizona, California and Nevada have signed an agreement to explore interstate water exchanges, desalination and recycled water projects to strengthen long-term Colorado...

Invasive golden mussels are spreading fast through California's water systems, threatening pipelines, pumps, and millions of acres of farmland. Four bipartisan congressmembers are urging the U.S....

The feds scrapped a major 2024 conservation rule and proposed the first grazing update since 1995, reshaping how the West's public lands are managed.

Arizona is expanding its fish consumption advisory program to include PFOS, a type of PFAS known as a "forever chemical." State agencies say the new guidance will help anglers make informed decisions...

Federal officials approved faster environmental reviews for certain hydropower projects, maintenance work, and equipment upgrades.