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Arizona

Arizona

After lawsuit from Colorado and other states, Utah asks Trump administration to delay decision on tapping Lake Powell

Utah cited the need to consider roughly 14,000 public comments on a draft environmental impact statement, released in June by the U.S. Bureau of Reclamation, for the Lake Powell pipeline project

Water shortages in Lake Powell, Lake Mead likelier than previously thought

Compared with an average year, only 55% of Colorado River water is flowing from the Rocky Mountains down to Lake Powell on the Utah-Arizona line

Colorado, five other states promise lawsuits if feds fast-track approval of Utah’s Lake Powell Pipeline project

Decades of collaborative agreements between the states that rely on the Colorado River could be threatened by the Trump Administration plan to expedite review of Utah’s diversion project

Western U.S. faces reckoning over water, but avoids cuts for now

The U.S. Bureau of Reclamation is expected to release projections Friday that suggest Lake Powell and Lake Mead will dip slightly in 2021

Why planting tenacious tamarisk seemed like a good idea until it wasn’t, and other harrowing tales of Colorado’s invasive species

For scientists, preserving nature’s balance can mean love-hate-love relationships with everything from Dalmatian toadflax to horny beetles and jumping carp.

Pocket of severe drought lingers over Southwest U.S., including Colorado

In all, nearly 70% of Colorado is abnormally dry or in moderate or severe drought,

Changes were made to water flow out of the Glen Canyon Dam. And that led to more bugs in the Colorado River.

The number of adult midges throughout the Grand Canyon rose by 34% on weekends versus weekdays during last year's experiment

The plan to protect the Colorado River still isn’t done. Now what?

Here's a look at river and the drought plan and why it matters

Arizona joins Colorado River drought plan just before federal deadline in effort to keep reservoirs from draining too low

The nightmare scenario for Arizona, California, Nevada and Mexico — which draw from Lake Mead — is a phenomenon called "dead pool," in which the level of the lake's surface falls below the gates that let water out