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Colorado River

A thin river winds through a landscape of layered red rocks.
Posted inNews

The Colorado River Basin Is Running Out of Water. Not Everyone Is Happy with the Government’s Suggested Solution.

by Emily Gardner 26 August 202626 August 2026

Though overallocation is one reason the river is shrinking, reduced snowpack and increased evaporation caused by climate change are also contributing factors.

The narrow entrance to Stanton’s Cave, about 40 meters above the Colorado River
Posted inNews

An Asteroid Impact May Have Led to Flooding near the Grand Canyon

Katherine Kornei, Science Writer by Katherine Kornei 22 October 202522 October 2025

There’s remarkable synchronicity between the timing of a paleolake in what is today Grand Canyon National Park and the formation of nearby Barringer Meteorite Crater.

Satellite image of a river channel.
Posted inEditors' Highlights

Inferring River Discharge from Google Earth Images

by Guiling Wang 20 May 202515 May 2025

Critical flow theory can predict river discharge based on the spacing of standing waves captured by Google Earth images.

A river curves back and forth through a series of layered red plateaus.
Posted inResearch Spotlights

How Rivers Carved the Canyons of the Central Colorado Plateau

by Rebecca Owen 25 February 202525 February 2025

A new study offers insights into a puzzling piece of the geological history of the Grand Canyon and surrounding regions.

An aerial image of the Colorado River as it winds its way near Hite Marina, Utah
Posted inNews

Potential Relief for the Colorado River’s Near Future

Jane Palmer, Science Writer by Jane Palmer 20 June 202420 June 2024

A new study reveals that precipitation could boost the iconic river’s flow in the next couple of decades despite the deleterious effects of warming temperatures due to climate change.

Un río con destellos de Sol, bordeado por bancos verdes y colocado entre dos grandes acantilados con tonos cafés.
Posted inNews

Diez ríos que enfrentan contaminación, desarrollo y cambio climático–Y las políticas que pueden ayudar

by Saima May Sidik 28 August 202330 August 2023

Reporte anual destaca 10 vías fluviales que han llegado a encrucijadas en las cuales el apoyo del público puede determinar si reciben protección.

An irrigation canal snakes by a field of lettuce outside Yuma, Ariz.
Posted inFeatures

Agriculture 3.0: Preparing for a Drier Future in the Colorado River Basin

Jane Palmer, Science Writer by Jane Palmer 5 July 20235 July 2023

Years of drought and climate change are causing water resources to dwindle in the Colorado River Basin. But farmers and scientists are collaborating to learn how to grow crops with less water.

A view of two marinas at the edge of a lake in the distance, with the arid rocky landscape sloping down to the lake in the foreground
Posted inFeatures

Fixing the Flawed Colorado River Compact

by Shemin Ge, Joann Silverstein, James Eklund, Patricia Limerick and David Stewart 16 June 202325 June 2024

The 1922 Colorado River Compact ignored available science and overallocated the river’s water, a decision whose effects reverberate today. Now there’s an opportunity to get things right.

A Sun-speckled river winds through banks populated by green scrub brush. Along the edge of the vegetation, red-brown sand abuts mesas that stretch toward a bright blue sky.
Posted inNews

Ten Rivers Facing Pollution, Development, and Climate Change—And Policies That Can Help

by Saima May Sidik 18 April 202328 August 2023

An annual report highlights 10 waterways that have arrived at forks: where public support could determine whether they receive protection.

An aerial image of a river flowing through fields of green
Posted inNews

Biden Administration Considers Unprecedented Solution to Colorado River Crisis

Jane Palmer, Science Writer by Jane Palmer 12 April 202326 February 2026

As Colorado River Basin states prove unable to reach a consensus in reducing their water consumption, the U.S. Department of the Interior is investigating an option that defies the Law of the River.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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