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water supply

A raging stream in Rocky Mountain National Park in north central Colorado
Posted inNews

Years-Old Groundwater Dominates Spring Mountain Streams

by Mark DeGraff 3 July 20253 July 2025

Alpine rain and snow take much longer to percolate into western U.S. streams than previously thought, adding complexity to long-standing hydrologic models.

2 graphs from the article.
Posted inEditors' Highlights

Obtaining Local Streamflow at Any Resolution

by Marc F. P. Bierkens 30 June 202530 June 2025

A new upscaling method ensures that global simulations at low resolution preserve the streamflow at local points of interest, such as stream gauges.

Barcas pequeñas en un río pequeño y seco
Posted inNews

Los ríos de Brasil se están infiltrando

by Sofia Moutinho 3 June 202527 June 2025

La extracción desmedida de aguas subterráneas podría estar obligando a los ríos a infiltrar agua hacia el subsuelo, según muestra un nuevo estudio. Las regiones con actividades de irrigación intensivas son las más expuestas a este riesgo.

Brown, dying stalks of corn are seen against a blue sky.
Posted inNews

Can Desalination Quench Agriculture’s Thirst?

by Lela Nargi 15 May 202515 May 2025

Miles away from the ocean, projects are afoot to clean up salty groundwater and use it to grow crops. Some say it’s a costly pipe dream, others say it’s part of the future.

Houston's skyline seen from above
Posted inNews

33.8 Million People in the United States Live on Sinking Land

by Grace van Deelen 8 May 20258 May 2025

The most populated cities in the country are slowly subsiding, posing risks to infrastructure and exacerbating flooding—and not just on the coasts.

A satellite image of dry, brown land with a blue-green river winding horizontally through the center of the image.
Posted inResearch & Developments

Mexico Will Give U.S. More Water to Avert More Tariffs

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 29 April 20255 May 2025

Mexican and U.S. officials announced that Mexico will immediately transfer some of its water reserves to the United States and also allow a larger share of the Rio Grande River to flow into the United States.

Water treatment tank
Posted inAGU News

One Water, Many Solutions

by Caryl-Sue Micalizio 24 April 202524 April 2025

Scientists and stakeholders must engage in broad collaborations and deep research to help ensure safe water supplies.

Natural spring water
Posted inFeatures

Delegations Drive One Water Dialogues

by Grace van Deelen 24 April 202524 April 2025

Proactive approaches allow water practitioners to address issues in innovative, inclusive ways.

Small boats on a small, drying river
Posted inNews

Brazil’s Rivers Are Leaking

by Sofia Moutinho 28 March 20253 June 2025

Wells overpumping groundwater could be forcing rivers to seep underground, a new study shows. Regions with intensive irrigation activities are at the most risk.

The Los Angeles River passes under a bridge at sunset.
Posted inNews

Seismometers Provide Fuller Picture of Los Angeles Groundwater

by Grace van Deelen 19 March 202519 March 2025

A new method to evaluate deep aquifers shows even torrential rains haven’t fully replenished groundwater beneath Los Angeles.

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A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Tracing Black Carbon’s Journey to the Ocean

11 July 202510 July 2025
Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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