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erosion & weathering

Diagram and photo of experimental setup.
Posted inEditors' Highlights

Rock-Ice Avalanche Dynamics: What it Erodes Can Affect How Far it Goes

by Matthew A. Thomas 21 August 202520 August 2025

Using small-scale physical experiments, the mobility of rock-ice avalanches is linked to variability in the earth materials that are encountered along the flow runout path.

An image of a slab of coral. Dark and light bands can be seen, which correlate with growing seasons.
Posted inNews

Coral Cores Pinpoint Onset of Industrial Deforestation

by Grace van Deelen 7 August 20257 August 2025

Trace elements in coral reefs provide a timeline of how Borneo’s rainforests have been altered by industry.

A satellite image shows the Atlantic Ocean and the eastern coast of the United States. The area is covered with clouds that have been colored yellow and pink to indicate their altitude.
Posted inNews

New Research Shows More Extreme Global Warming Impacts Looming for the Northeast

by Bob Berwyn 21 July 202521 July 2025

One new study identifies a 17% increase in the destructive potential of the strongest nor’easters, while another bolsters links between Arctic ice melt and dangerous blizzards.

Diagram of the field experiment used in the study.
Posted inEditors' Highlights

Deep Root Respiration Helps Break Down Rocks

by Marc F. P. Bierkens 2 July 20252 July 2025

The carbon dioxide that results from respiration in and around deep roots is an essential component in the chemical weathering of sandstone rock soils.

A tractor pulling a plow over a dirt field and generating dust is seen from above.
Posted inNews

Fallowed Fields Are Fueling California’s Dust Problem

by Andrew Chapman 13 June 202512 June 2025

New research shows that unplanted agricultural lands are behind most of the state’s anthropogenic dust events.

Google Earth image of a mountainous region with a deeply incised fjord and low relief surfaces surrounding.
Posted inEditors' Highlights

High Relief, Low Relief — Glaciers Do It All

by Peter Zeitler 4 June 20254 June 2025

Contrary to conventional wisdom that glaciers just carve landscapes, they can also form low-relief surfaces by sheltering rock from erosion, enriching understanding of how mountain landscapes evolve.

Fluffy clouds float in a blue sky over a grassy hill
Posted inResearch Spotlights

Compost and Biochar Could Boost Carbon Sequestration by Crushed Rock

by Nathaniel Scharping 22 April 202522 April 2025

Crushed rock additives may also help decrease soil emissions of other greenhouse gases, such as nitrous oxide and methane.

A desert landscape with a river valley
Posted inNews

Climate Shifts Drive Episodic Drainage Changes

by Caroline Hasler 14 April 202514 April 2025

Drainage divide migration is influenced by tectonics and climate over long periods. New research in Israel shows that even shorter-term wet-dry cycles can move divides.

Illustration of the driving forces of erosion.
Posted inEditors' Vox

Erosion: An Overlooked Contributor to the Carbon Cycle

by Haiyan Zheng and Chiyuan Miao 13 March 202512 March 2025

Since physical and chemical erosion yield comparable carbon fluxes, studying both together is essential to avoid biases in erosion-driven carbon flux estimates.

A river curves back and forth through a series of layered red plateaus.
Posted inResearch Spotlights

How Rivers Carved the Canyons of the Central Colorado Plateau

by Rebecca Owen 25 February 202525 February 2025

A new study offers insights into a puzzling piece of the geological history of the Grand Canyon and surrounding regions.

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Features from AGU Publications

Research Spotlights

Machine Learning Simulates 1,000 Years of Climate

27 August 202527 August 2025
Editors' Highlights

As Simple as Possible: The Importance of Idealized Climate Models

28 August 202526 August 2025
Editors' Vox

Waterworks on Tree Stems: The Wonders of Stemflow

21 August 202520 August 2025
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