America may have to sacrifice Lake Powell to save the Colorado River, as scientists warn the current two-reservoir system is becoming unsustainable

Western water experts debate consolidating Colorado River storage in Lake Mead. This proposal, “Fill Mead First,” aims to reduce evaporation and seepage losses. Supporters believe concentrating water improves long-term security and ecological recovery. Critics warn against losing Lake Powell’s crucial buffer during droughts. Adapting to a drier river requires new management strategies for millions.