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Research Spotlights

Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.

A lake, seen from above, is swirling with green algal blooms. It is flanked on either side by brown desert land.
Posted inResearch Spotlights

Global Climate Models Need the Nitrogen Cycle—All of It

by Nathaniel Scharping 30 October 202518 November 2025

Nitrogen plays important roles in areas including climate change, human health, and agriculture. A researcher argues that climate models would benefit from more fully incorporating its influence.

A snow-covered mountain on an island is seen from the air, through some parted clouds.
Posted inResearch Spotlights

New Earthquake Model Goes Against the Grain

by Saima May Sidik 27 October 202527 October 2025

Subducting plates are stronger in certain directions than others, which may be a factor in how earthquakes occur and how seismic waves propagate.

Tangled strands of mycorrhizal fungi with an appearance similar to plant roots.
Posted inResearch Spotlights

How Plant-Fungi Friendships Are Changing

by Saima May Sidik 22 October 202522 October 2025

A new framework shows how much carbon plants allocate to their endosymbionts and how that amount might change in the face of warming soil and rising carbon dioxide levels.

Two modeling images show plumes, blobs, and slabs beneath Earth’s surface.
Posted inResearch Spotlights

Seismic Anisotropy Reveals Deep-Mantle Dynamics

by Rebecca Owen 21 October 202523 October 2025

A new study offers insight into the viscous BLOBs at the base of Earth’s mantle.

A wave rises on the ocean surface, and a cloud floats in a blue sky.
Posted inResearch Spotlights

The Southern Ocean May Be Building Up a Massive Burp

Sarah Derouin, Science Writer by Sarah Derouin 20 October 202520 October 2025

Modeled results suggest that if anthropogenic emissions decrease and the atmosphere cools, heat stored in the Southern Ocean could be released abruptly in a few hundred years, kicking off a temporary warming period.

An aerial photo of Alaska’s Copper River Delta
Posted inResearch Spotlights

Tectonics and Climate Are Shaping an Alaskan Ecosystem

by Nathaniel Scharping 16 October 202516 October 2025

Biogeochemical research reveals the web of forces acting on a high-latitude microbe community in the Copper River Delta.

A map of Chicago shows a grid of different neighborhoods colored in shades ranging from yellow to purple.
Posted inResearch Spotlights

Chicago Soil Maps Childhood Lead Exposure Risk

by Rebecca Owen 15 October 202515 October 2025

Researchers combined soil measurements and public health data to identify areas where children may be exposed to unsafe levels of lead in the dirt.

A lake, surrounded by low hills and trees, is overlooked from a nearby hill. In the mid-ground, a white truck drives across the frame.
Posted inResearch Spotlights

New 3D Model Reveals Geophysical Structures Beneath Britain

by Nathaniel Scharping 10 October 202510 October 2025

Using magnetotelluric data to identify subsurface electrically conductive and resistive areas, scientists can identify underground features and predict how space weather may affect infrastructure.

A satellite image shows a swirl of clouds off the western coast of the United States.
Posted inResearch Spotlights

A Step Toward AI Modeling of the Whole Earth System

by Saima May Sidik 9 October 20259 October 2025

Coupling an AI-driven model of the atmosphere with a model of the ocean could help scientists create highly efficient emulations of the entire Earth system.

An artist’s depiction of four purple octagonal spacecraft flying in space. The light behind them is orange from the Sun, and in the background at right is Earth, surrounded by an overlapping series of magnetic field lines.
Posted inResearch Spotlights

Magnetic “Switchback” Detected near Earth for First Time

Sarah Stanley, Science Writer by Sarah Stanley 8 October 20258 October 2025

Until recently, this type of zigzag shape—formed by energetic rearrangement of magnetic field lines—had been seen only near the Sun.

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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.

Features from AGU Publications

Research Spotlights

Understanding Flux, from the Wettest Ecosystems to the Driest

24 November 202524 November 2025
Editors' Highlights

Avoiding and Responding to Peak Groundwater

25 November 202525 November 2025
Editors' Vox

Echoes From the Past: How Land Reclamation Slowly Modifies Coastal Environments

19 November 202519 November 2025
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