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water supply

An automated hydrological drip logger (small rectangular box) sits atop a white stalagmite below stalagmites dripping with water in a tight cave space illuminated with bright light.
Posted inScience Updates

When Does Rainfall Become Recharge?

by Stacey Priestley, Andy Baker, Margaret Shanafield, Wendy Timms and Martin Andersen 4 December 20254 December 2025

Counting drips in caves is helping to reveal how much precipitation is needed to start refilling underground aquifers.

A red horse stands in a marsh, up to its knees, and looks back at the camera.
Posted inNews

What Salty Water Means for Wild Horses

by Rebecca Owen 21 November 202526 November 2025

New research monitors how saltwater intrusion is affecting the behaviors of Shackleford Banks’s wild horses.

On the human-made wall of a waterway, appear graffiti of a water spigot beside the text “Our dam levels won’t rise this easily. Please save water.”
Posted inNews

Are “Day Zero Droughts” Closer Than We Think? Here’s What We Know

by Mariana Mastache-Maldonado 5 November 20255 November 2025

A new study warns that day zero droughts—when reservoirs fail to supply taps—could become common within this decade.

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.

Posts pagination

1 2 3 … 20 Older posts
A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Watershed Sustainability Project Centers Place-Based Research

4 December 20254 December 2025
Editors' Highlights

Changes in Slab Dip Cause Rapid Changes in Plate Motion

4 December 20252 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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