Arizona is tussling with other states over how much of the Colorado River it should receive. But how will Arizonans divide ...

It's ridiculous that we know so little about how much water Arizona stands to lose from the Colorado River. But we can ...

Arizona’s water chief is offering a new path out of the morass in Colorado River negotiations — a proposal to tie future ...

The bill will allow farmers to exchange land and water rights with urban developers to decrease water use and increase ...

Mayors of Western cities are urging the Trump administration to take steps to help address water scarcity as climate change ...

The anxiety over Arizona's water supply is growing, as the state, along with other Colorado River Basin states, have until 2026 to reach a water deal. This comes amid ongoing worries over the ...

About 40 million people rely on the Colorado River for drinking water. It also irrigates agricultural fields. It's also shrinking. Now, states might agree on a potential deal on sharing the river.

The worst-case forecast has Lake Powell falling to low enough levels by the end of next year to halt electricity production ...

Arizona is almost certain to lose a sizable amount of Colorado River water after 2026. But it could still be months until we know exactly how much pain that could cause for our state.

Cooke is the former manager of the Central Arizona Project. The region's water experts regard him as a qualified expert.

The ag-to-urban bill is the bipartisan win Arizona needed, especially as it enters tense negotiations on the Colorado River.