An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

How Hudbay’s Santa Rita mining will impact Southern Arizona’s waterways

The proposed Copper World Complex mine is carving roads and berms that will impact wildlife and waterflow.
Parshall Flume photo

State engineers developing measurement rules for water diversions

Colorado officials are preparing for a future with less water by developing rules for users to measure how much they're taking from streams.

Some Western cities offer residents “cash for grass” to reduce irrigation

A study in 2016 showed that lawns are the largest irrigated crop in America.

When the well runs dry

Nobody knows how much water New Mexico has. Finding out is the best way to ensure survival against drought and climate change.

Photos: Santa Cruz River in Tucson, February 2021

This page features photos of the Santa Cruz River in Tucson, Arizona. The Santa Cruz begins in southern Arizona, dips into northern Mexico, and meets the Gila River, a...
The Roller Dam on the Colorado River west of Glenwood Springs.

State to host public confabs on next steps in study of Lake Powell drought...

A statewide public effort to determine whether Coloradans should engage in perhaps the biggest water conservation program in state history enters its second year of study this summer, but the complex, collaborative effort on the Colorado River has a long way to go before the state and its water users can make a go/no-go decision, officials said.

Wyoming’s Colorado River water rights in jeopardy without improved info, official warns

Wyoming’s water chief wants emergency funds for hydrologists to measure flows in the state’s portion of the troubled Colorado River Basin, documentation he said is vital to preserving irrigation...

Data viz: explore our interactive dashboards for drought, precipitation and snowpack

These maps and visualizations let you interact with vital data on our water supply.
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Video story: When in drought, call the beavers

Beaver reintroduction and restoration can help with some of the West's most profound water problems, both in terms of quantity and quality. A trial program is underway at Caribou Ranch in Boulder County.

The Colorado River is awash in data vital to its management, but making sense...

A major science report that highlights scientific shortcomings and opportunities in the Basin could aid water managers as they rewrite the river's operating rules.