Begun, the water wars have.

State negotiators embroiled in an impasse over how to manage the imperiled Colorado River were unable to agree on a plan before a federally set deadline on Tuesday, thrusting deliberations deeper into uncertain territory.

Stakeholders have spent months working to iron out contentious disagreements over how to distribute water from this sprawling basin – which supplies roughly 40 million people in seven states, 5.5m acres of farmland, dozens of tribes and parts of Mexico – as the resources grow increasingly scarce.

Long-term overuse and the rising toll from the climate crisis have served as a one-two punch that’s left the system in crisis.

Enough progress was made to warrant an extension, according to a joint statement issued by federal officials and representatives from the seven western states. But the discussions – and the deadline set for them – were set to an urgent timeline; current guidelines are expiring and a new finalized agreement must be put in place by October 2026, the start of the 2027 water year.