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Arctic

R/V Mirai makes its way across Arctic sea ice.
Posted inNews

The Bottom of the Arctic Is Blooming

by Fanni Daniella Szakal 14 November 202217 November 2022

Researchers found phytoplankton hidden on the Arctic seafloor, hinting at a cascade of effects on the local ecology and carbon cycle.

Aerial photograph showing melt ponds in a raft of sea ice. The shadow of the airplane is cast over the ice.
Posted inNews

Satellites Get First Full-Year View of Arctic Sea Ice Thickness

by Erin Martin-Jones 20 October 202222 March 2023

The AI-based monitoring method may unlock data that could improve shipping safety and climate predictions.

Research vessel overlooking a glacier
Posted inNews

Arctic Glaciers, a Peruvian Volcano, and a Russian Famine

by Santiago Flórez 11 October 202220 September 2023

A team studying Russian glaciers found evidence that a volcanic eruption in southern Peru changed the planet’s climate at the beginning of the 17th century.

Map of the Yukon-Kuskokwim Delta in Alaska
Posted inEditors' Highlights

The Burning Tundra

by Marguerite A. Xenopoulos 4 October 202219 January 2023

As wildfires blaze through the Arctic, scientists examine the role of landscape characteristics on wildfire ecosystem responses in northern aquatic ecosystems.

View from a research ship overlooking an expanse of fractured sea ice under a sunny sky with high clouds.
Posted inResearch Spotlights

Capturing Ocean Turbulence at the Underbelly of Sea Ice

Sarah Stanley, Science Writer by Sarah Stanley 20 September 202220 September 2022

A specially designed instrument enabled researchers in the Arctic to measure turbulence within 1 meter of the interface where ice meets ocean.

Posted inEditors' Highlights

The Long-Lasting Impact of a Nuclear War on the Ocean

by Nicolas Gruber 12 September 202227 September 2022

Model simulations of the impact of a large-scale nuclear war reveal long lasting effects with much of the ocean not returning to pre-war levels despite the cessation of the initial cooling.

Three scientists discuss around a map on a table.
Posted inFeatures

How an Unlikely Friendship Upended Permafrost Myths

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 19 August 202220 September 2023

“Beautifully long arguments” between an American scientist and a Russian researcher helped clarify several fundamental assumptions about permafrost thaw.

Graph from the paper.
Posted inEditors' Highlights

Arctic Salinity Pushes the AMOC Swing

by Kristopher B. Karnauskas 3 August 20222 July 2024

A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.

Tero Mustonen skis across snow-covered Sweden.
Posted inFeatures

Tero Mustonen: Disrupting the Status Quo

Jane Palmer, Science Writer by Jane Palmer 25 July 202225 July 2022

Advocating for the importance of Traditional Knowledges in Finland and beyond.

Map of Alaska showing the study regions and a bar graph showing wildfire events by year.
Posted inEditors' Highlights

Lightning in Alaskan Tundra Ignites Most Fires

by Valeriy Ivanov 19 July 202211 August 2022

Cloud-to-ground lightning is found to be the most important controller of wildfire occurrence in the Artic tundra of Alaska from 2001 to 2019.

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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

What Could Happen to the Ocean’s Carbon If AMOC Collapses

6 January 20266 January 2026
Editors' Highlights

Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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