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Arctic

A leafy plant is silhouetted against an orange Sun and red sky.
Posted inResearch Spotlights

In the Arctic, Consequences of Heat Waves Linger

by Saima May Sidik 22 August 202521 August 2025

The aftermath of a historic 2020 heat wave could still be felt in Siberia a year later.

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.

A satellite image of a river becoming a fan-shaped delta and then draining into the ocean.
Posted inResearch Spotlights

Arctic Rivers Trade Inorganic Nitrogen for Organic

by Saima May Sidik 6 August 20256 August 2025

Climate change is shifting the makeup of a key nutrient in rivers across Russia, Alaska, and Canada, with the potential for ecosystem-wide impacts.

Snow-covered surface with dark patches of soil uncovered. Steam is rising from some patches.
Posted inNews

As the Arctic Warms, Soils Lose Key Nutrients

Javier Barbuzano, Science Writer by Javier Barbuzano 1 August 202526 August 2025

Climate change heats not only the air and the ocean but also the soil, where key processes that determine fertility and carbon sequestration operate in a fine-tuned balance.

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.

A map of the United States and a graph.
Posted inEditors' Highlights

The Mid-20th Century Winter Cooling in the Eastern U.S. Explained

by Alberto Montanari 3 July 20253 July 2025

A new analysis of historical jet stream behavior reveals that increases in jet stream waviness accounted for 55-71% of winter cooling in the eastern United States from 1958 to 1988.

A small vessel sails past a glacier.
Posted inNews

New Satellite Adds Evidence of an Earth-Shaking Wave

by J. Besl 1 July 20251 July 2025

A tsunami struck a fjord in East Greenland in 2023, ringing seismometers for nine straight days. A new satellite study provides the first observational evidence of the waves.

Photo of a valley with a dark water tracks leading to a sinuating river.
Posted inEditors' Vox

Water Tracks: The Veins of Thawing Landscapes

by Joanmarie Del Vecchio and Sarah G. Evans 25 June 202525 June 2025

Tracing and tracking change in permafrost flowpaths could reveal the dynamics of warming poles.

Close-up view of pieces of sea ice separated by a strip of open water.
Posted inScience Updates

Finding Consensus on Arctic Ocean Climate History

by Jochen Knies, Matt O’Regan and Claude Hillaire Marcel 25 June 202525 June 2025

Understanding the effects of a “blue” Arctic Ocean on future climate requires a coordinated effort to study Earth’s past warm periods using a variety of classical and cutting-edge methods.

In the foreground is a beach covered in brownish seaweed, farther back is a body of water coated in chunks of floating ice, and in the distance are mountains and the sky.
Posted inResearch Spotlights

Seaweed Surges May Alter Arctic Fjord Carbon Dynamics

Sarah Stanley, Science Writer by Sarah Stanley 16 May 202516 May 2025

Climate change–accelerated seaweed growth could cause seaweed-dependent microbes to proliferate and consume more oxygen, leading to a rise in oxygen-starved zones.

Posts pagination

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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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