The water shortage threatens the livelihoods of 40 million people across the Southwest, including major cities like Phoenix, Los Angeles, and Las Vegas. Agriculture and industries reliant on water-intensive crops and processes face significant challenges. Arizona, which depends heavily on the Central Arizona Project, risks severe economic and social disruption if the canal is shut down. Tribal communities, with priority water rights, may face renewed conflicts over resource allocation. Experts warn that the crisis could worsen without substantial reductions in water usage and long-term solutions.