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groundwater

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.

Lake Fryxell in Victoria Land, Antarctica.
Posted inNews

The Land Beneath Antarctica’s Ice Might Be Full of Water

by Nathaniel Scharping 26 November 202526 November 2025

Seismic surveys hint at the extent of a potential groundwater system in the White Continent.

Diagram from the study.
Posted inEditors' Highlights

Avoiding and Responding to Peak Groundwater

by Kelly Caylor 25 November 202525 November 2025

A new review shows how rising demand, shrinking supplies, and policy decisions together shape when groundwater use peaks and what can be done to avoid long-term depletion.

Diagram from the article.
Posted inEditors' Highlights

The Invisible Brake: Near‑Surface Cooling Stalls Giant Dyke Swarms  

by Nikolai Bagdassarov 18 November 202517 November 2025

Sill-based pressure reconstructions show Mull’s giant dykes had eruption-capable pressures, but near‑surface groundwater cooling increased magma viscosity and stalled lateral propagation. 

A beaver swimming in water with a stick in its mouth.
Posted inEditors' Highlights

Beavers are Not Concerned About Groundwater

by Stefan Kollet 30 October 202530 October 2025

But, scientists are! A new study illuminates the complex interactions of beaver dam induced ponding and floodplain inundation with shallow groundwater storage and flow patterns.

Research scientist Kelly Hondula gathers water samples from submarine groundwater discharge sites along the Hawaiian coast.
Posted inNews

Pinpointing Sewage Seeps in Hawaii

by Anna Napolitano 9 October 20259 October 2025

Cesspools and septic systems, as well as coastal development, put Hawaiian coastal waters at risk of contamination.

Diagram from the study.
Posted inEditors' Highlights

Tracking the Sinking Ground from Coal Seam Gas Extraction

by Gabriel Rau 11 August 20257 August 2025

A new model shows how coal seam gas extraction causes land to sink by linking groundwater loss and coal shrinkage, helping predict impacts on farming in gas-producing areas.

Map from the study.
Posted inEditors' Highlights

A Volcanic Boom Puts the Squeeze on Remote Confined Aquifers

by Douglas R. Schmitt 28 July 202523 July 2025

A new study shows that ground water levels responded to forcing by barometric pressure pulses from the 2022 Hunga Tonga-Hunga Ha’apai Volcanic Eruption.

一条河流及后面可见的绿色河岸,山峦和一处灰色的建筑。
Posted inResearch Spotlights

追踪黑碳进入海洋的过程

Aaron Sidder, freelance science writer by Aaron Sidder 24 July 202524 July 2025

科学家们对三个河口进行研究,来寻找海洋溶解黑碳缺失的来源。

Photo of karst limestone bedrock.
Posted inEditors' Vox

Groundwater Pollution in Karst Regions: Toward Better Models

by Kübra Özdemir Çallı and Andreas Hartmann 22 July 202522 July 2025

New advances in modeling contaminant transport offer a clearer picture of how to protect karst aquifers.

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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.

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9 December 20259 December 2025
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Hydrothermal Circulation and Its Impact on the Earth System

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