The Year in Water 2025: The #ColoradoRiver — Brett Walton (circleofblue.org) #COriver #aridification

Click the link to read the article on the Circle of Blue website (Brett Walton):

December 24, 2025

The year is ending with the Colorado River at a critical juncture.

Figure 4. Graph showing active storage in Lake Powell, Lake Mead, and in Powell+Mead between January 1, 2023, and November 30, 2025. Credit: Jack Schmidt/Center for Colorado River Studies

The big reservoirs Mead and Powell remain perilously low and the seven states that share the basin have been unable to agree on cuts that would reduce their reliance on the shrinking river.

Reservoir operating rules expire at the end of 2026. If no agreement is reached the federal government could step in, or the states could take their chances in court. It’s a risky move that no one in principle seems to want. Yet brinkmanship and entrenched positions have stymied compromise.

Native America in the Colorado River Basin. Credit: USBR

The basin’s Indian tribes, which collectively have rights to more than a quarter of its recent average annual flow, are adamant that their interests – and more broadly, the river itself – be protected. “Any progress made in the negotiations to date is merely rationing a reduced supply, not actively managing and augmenting it as a shared resource with strategies and tools that can benefit the entire basin,” the leaders of the Gila River Indian Community wrote on November 12.

The Colorado River Indian Tribes, whose riverside reservation includes lands in Arizona and California, voted in November to extend legal personhood to the river under tribal law.

Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0

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