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freshwater

Chesapeake Bay, with its tree-lined waterfronts curving along the river toward the ocean, is pictured from above.
Posted inResearch Spotlights

River Alkalinization and Ocean Acidification Face Off in Coastal Waters

by Madeline Reinsel 21 May 202521 May 2025

Factors ranging from rainfall to nutrient runoff to changing mining and agricultural practices drove decades-long pH trends in the Chesapeake Bay.

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.

A wetland under a sunny sky.
Posted inResearch & Developments

EPA Moves to Rewrite Water Rules Following Sackett Decision

by Grace van Deelen 12 March 20255 May 2025

EPA administrator Lee Zeldin announced today that the agency would kick off a review of EPA rules and redefine “waters of the United States” to ensure that the agency aligns with the 2023 Supreme Court decision Sackett v. Environmental Protection Agency (EPA), which limited the implementation of the Clean Water Act.

A plume water spouts high into the air from a well drilled in arid-looking ground beside water trucks and drilling equipment emblazoned with “UN.”
Posted inOpinions

Deep Groundwater Might Be a Sustainable Solution to the Water Crisis

by Claudia Bertoni, Fridtjov Ruden, Elizabeth Quiroga Jordan and Helene Ruden 27 February 202524 April 2025

Scientists are finding fresh groundwater buried deep underground, but questions remain about the scale of these resources, how they’re resupplied, and whether they can be used sustainably.

A gauge used to measure lake levels stands on a dry, sandy lake bed
Posted inNews

A Fuller Great Salt Lake Would Likely Narrow an Environmental Health Gap

by Grace van Deelen 1 October 20241 October 2024

Pacific Islander and Hispanic residents of Salt Lake City would benefit most from higher lake levels and reduced dust pollution.

Rocas saliendo del océano en una costa
Posted inNews

Circones de 4,000 millones de años podrían contener nuestras evidencias más antiguas de la existencia de agua dulce

by Nathaniel Scharping 4 September 20244 September 2024

Cristales australianos apuntan a la existencia de agua dulce, así como de continentes que se elevaban sobre el océano Hadeano de la Tierra.

People floating in colorful tubes in the distance down gentle river rapids.
Posted inNews

Labor Day Dips Alter Stream Composition

by Grace van Deelen 30 August 202429 August 2024

Holiday weekend tubing introduces toxic chemicals and shifts microbial communities in a popular Colorado river.

Satellite view of rectangular evaporation ponds used for lithium mining located amid a bright white salt flat.
Posted inOpinions

Concerns over Lithium, Water, and Climate in Earth’s Two Highest Deserts

by Lan Cuo 27 August 202413 February 2025

Brine mining to meet resource demands amid renewable energy transitions is affecting water resources in South America and China. Hydrologists can help understand how and join the search for solutions.

A stream in a rocky, high-walled brown desert
Posted inNews

More Than Half of Contiguous U.S. River Water Comes from Ephemeral Streams

by Nathaniel Scharping 29 July 202431 July 2024

The finding has potential implications for water regulations, which don’t currently cover these seasonal streams.

Posts pagination

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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

River Alkalinization and Ocean Acidification Face Off in Coastal Waters

21 May 202521 May 2025
Editors' Highlights

Rock Solid Augmentation: AI-Driven Digital Rock Analysis

21 May 202521 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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