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groundwater

Two scientists collecting samples in a wetland.
Posted inEditors' Vox

Coastal Wetlands Restoration, Carbon, and the Hidden Role of Groundwater

by Mahmood Sadat-Noori 9 February 20269 February 2026

Coastal wetland restoration offers major carbon benefits, and understanding groundwater processes helps explain how these ecosystems store carbon over the long term.

A bird stands next to plastic bottles and bags on a rocky beach.
Posted inFeatures

Pollution Is Rampant. We Might As Well Make Use of It.

by Saima May Sidik 30 January 202630 January 2026

Human-made substances hold dangers for the environment, but they also give scientists a view into recent history.

A map of the contiguous United States shows the depth of the water table in different areas.
Posted inNews

Report: 13 Great Lakes’ Worth of Water Underlies the Contiguous United States

by Emily Gardner 26 January 202626 January 2026

Researchers used 1 million data points and a machine learning algorithm to estimate groundwater stores with higher resolution than ever before.

Figure from the paper.
Posted inEditors' Highlights

Calibrating the Clocks: Reconciling Groundwater Age from Two Isotopes

by Sergi Molins 26 January 202622 January 2026

A new quantitative model corrects for tracer-based age biases from 39Ar and 14C isotopes leading to more accurate estimates of groundwater residence times.

A dry lakebed with dead trees under a sunny sky.
Posted inResearch & Developments

We Are “Living Beyond Our Hydrological Means,” UN Report Warns

by Grace van Deelen 20 January 202620 January 2026

Humanity has overspent and depleted freshwater in the world’s aquifers, glaciers, wetlands, and other natural reservoirs to an irreversible degree, according to a new United Nations report.

A valley with angular plots of agricultural land is seen from above. The Sun shines through clouds in the background.
Posted inResearch Spotlights

Microbial Genes Could Improve Our Understanding of Water Pollution

by Rebecca Owen 13 January 202613 January 2026

New research in Germany’s Ammer floodplain examines microbial biomarkers to help improve modeling of denitrification.

Map from the study.
Posted inEditors' Highlights

Episodic Tales of Salt  

by Stefan Kollet 10 December 20259 December 2025

When episodic pulses of road salt hit after a winter storm, the impact can be like a lightning strike for the environment.

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.

Posts pagination

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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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20 February 202620 February 2026
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A Double-Edged Sword: The Global Oxychlorine Cycle on Mars

10 February 202610 February 2026
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