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Earth science

Aerial view of snow-covered Yukon River Delta in Alaska.
Posted inNews

Changing Winters Leave Indigenous Alaskans on Thin Ice

by Cassidy Beach 12 December 202517 December 2025

Researchers are blending Indigenous Knowledges with climate models to describe shifts in snow and ice.

Photos and sketches of samples from the study.
Posted inEditors' Highlights

Frictional Properties of the Nankai Accretionary Prism

by Alexandre Schubnel 11 December 20259 December 2025

A database of frictional properties from IODP drilling materials explores the range of slip spectrum and the generation of slow to fast earthquakes in the Nankai subduction zone in light of mineralogy.

Map from the study.
Posted inEditors' Highlights

Episodic Tales of Salt  

by Stefan Kollet 10 December 20252 March 2026

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

Chet Udell (second from right) and students at a MacGyver session at AGU24.
Posted inNews

Celebrating the MacGyver Spirit: Hacking, Tinkering, Scavenging, and Crowdsourcing

by Kate Evans 9 December 202511 December 2025

The MacGyver sessions allow scientist-tinkerers to have “nerd-on-nerd” discussions about do-it-yourself gadgets and gizmos.

A pale gray rock shows an impression of multiple curved lines.
Posted inNews

The Long and the Weak of It—The Ediacaran Magnetic Field

Katherine Kornei, Science Writer by Katherine Kornei 9 December 20259 December 2025

A roughly 70-million-year interval of anomalously weak magnetic field during the Ediacaran period could have triggered atmospheric changes that supported the rise of macroscopic life.

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.

Graph from the study
Posted inEditors' Highlights

Changes in Slab Dip Cause Rapid Changes in Plate Motion

by Donna Shillington 4 December 20258 December 2025

Periods of slab shallowing in the South American subduction zone appear to cause decelerations in Nazca plate motion.

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.

A large, anvil-shaped cloud
Posted inNews

Some Summer Storms Spit Sooty Particles into the Stratosphere

by Grace van Deelen 26 November 202526 November 2025

Earth’s typically pristine stratosphere is filling with particles from wildfires and additional moisture due to strong convective storms.

Aialik Glacier makes a big splash as it calves into the water at Alaska’s Kenai Fjords National Park.
Posted inNews

Glacier Runoff Becomes Less Nutritious as Glaciers Retreat

Javier Barbuzano, Science Writer by Javier Barbuzano 25 November 202525 November 2025

Sediment from retreating, land-terminating glaciers contains proportionally fewer micronutrients such as iron and manganese, reducing the glaciers’ value to microorganisms at the base of the food web.

Posts pagination

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Features from AGU Publications

Research Spotlights

As Wildfires Increase in the West, So Does Suppression Spending

10 June 202610 June 2026
Editors' Highlights

A Snapshot of Continental Crust in the Making

17 June 202616 June 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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