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glaciers & ice sheets

A rock basin with snow on its edges has recently been emptied of water.
Posted inResearch & Developments

Glacial Lake Outburst Causes Record River Crest in Juneau

by Emily Dieckman 13 August 202513 August 2025

The Mendenhall River in Juneau, Alaska, reached a record-breaking crest Wednesday morning thanks to a glacial outburst flood (GLOF) from Suicide Basin. At 16.65 feet, the crest exceeded the previous record flood stage of 15.99 feet in 2024.

A large iceberg floats in blue Arctic Ocean water.
Posted inNews

Arctic Ice Shelf Theory Challenged by Ancient Algae

by Andrew Chapman 13 August 202513 August 2025

Chemical signatures of marine organisms reveal that seasonal sea ice, not a massive ice shelf, persisted in the southern Arctic Ocean for 750,000 years.

An initial view of the 10 August 2025 landslide onto the South Sawyer Glacier.
Posted inThe Landslide Blog

Updates from the Alaska Earthquake Center regarding the 10 August 2025 landslide

by Dave Petley 13 August 202513 August 2025

The location of this major event has now been identified. It was a major rock slope failure that ran out across the South Sawyer Glacier. The Alaska Earthquake Center has now provided a detailed update about the 10 August 2025 landslide that occurred in the area of Tracy Arm. This work has been led by […]

Satellite view of many glaciers covering portions of a mountainous landscape.
Posted inOpinions

Glacier Monitoring from Space Is Crucial, and at Risk

by Michael Zemp, Livia Jakob, Fanny Brun, Tyler Sutterley and Brian Menounos 8 August 20257 August 2025

A new community effort shows that Earth has lost 5% of its global glacier mass since 2000. The work highlights the necessity of spaceborne glacier observations and upcoming gaps in long-term monitoring.

Google Earth view of the candidate body of glacial material possibly associated with the 5 August 2025 debris flow at Tharali in northern India.
Posted inThe Landslide Blog

The possible causes of the Dharali (Tharali) debris flow in Uttarakhand, India

by Dave Petley 6 August 20257 August 2025

A possible cause of the 5 August 2025 landslide is the failure of a large body of glacial material high in the valley above the village. The imagery that is emerging after the 5 August 2025 debris flow in Dharali (Tharali), in Uttarakhand, northern India make very somber viewing. Melaine Le Roy posted this comparison […]

Satellite photo of features on Europa.
Posted inEditors' Highlights

What Goes Up Must Come Down: Movement of Water in Europa’s Crust

by Kelsi Singer 31 July 202531 July 2025

Using Earth’s glaciers as an analog, a new study explores the possibility of downward propagation of fractures and melt in Europa’s icy crust.

A large icebreaking ship docked in a shipyard among sea ice.
Posted inResearch & Developments

Scientists Ask NSF to Keep Only Antarctic Icebreaker Afloat

by Grace van Deelen 29 July 202529 July 2025

On 28 July, more than 170 researchers sent a letter to National Science Foundation leaders and Congress, urging them to reconsider the decision to terminate the lease of the Nathaniel B. Palmer, the United States’ only Antarctic research vessel-icebreaker (RVIB) and a key part of science operations around the White Continent.

A group of people in the distance stand on a large gray rock outcrop with grooves carved by glaciers.
Posted inFeatures

Getting Schooled in Complex Earth System Modeling

by Stephanie Sherman, Terry Wilson, Rebekka Steffen, Holger Steffen and Andrew Lloyd 25 July 202524 July 2025

Training schools focused on modeling solid Earth responses to ice mass changes offer lessons on how early-career scientists can build professional networks and learn skills to solve complex problems.

Posted inThe Landslide Blog

The 8 July 2025 catastrophic flood at Rasuwagadhi in Nepal

by Dave Petley 9 July 20259 July 2025

Yesterday, catastrophic flood swept down the Bhote Kosi river through Tibet and Nepal. At least 28 people have been killed. There is speculation that this might have been a GLOF. On 8 July 2025, a catastrophic mudslide / flood suddenly struck the Rasuwagadhi border crossing point between Tibet and Nepal, causing extensive damage. The Himalayan […]

Google Earth image of the landslide at the Barry Glacier in Alaska in 2019.
Posted inThe Landslide Blog

Landslides during periods of glacial retreat in Alaska

by Dave Petley 30 June 202530 June 2025

An excellent new paper (Walden et al. 2025) examines the occurrence of accelerated movement in rock slope landslides in Alaska as adjacent glaciers melt. The exceptional temperatures in recent days in both North America and Europe has once again highlighted the rate at which the climate is changing in response to anthropogenic increases in greenhouse […]

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Features from AGU Publications

Research Spotlights

In the Arctic, Consequences of Heat Waves Linger

22 August 202521 August 2025
Editors' Highlights

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

21 August 202520 August 2025
Editors' Vox

Waterworks on Tree Stems: The Wonders of Stemflow

21 August 202520 August 2025
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