Degrading permafrost and earlier small quakes likely weakened a rock slope until it collapsed and buried an Arctic glacier in tons of rock.
Arctic
Posted inResearch Spotlights
Using Machine Learning Techniques for Polar Vortex Predictions
A new model accurately reproduces aspects of polar vortex behavior, extracting indicators of imminent vortex collapse and accompanying frigid weather in North America and Europe.
Posted inEditors' Highlights
Melting Permafrost Impacts Arctic Rivers in Vulnerable Regions
Changes in river chemistry in the northwestern North American Arctic reflect increased acid rock drainage associated with permafrost thaw, an unexpected consequence of Arctic warming.
Posted inResearch Spotlights
Patchier Permafrost Is Linked to More Intense Hillslope Erosion
Arctic landscapes with spots of disconnected permafrost erode faster than those with continuous permafrost, a new study finds.
Posted inScience Updates
Reliable AI Sea Ice Forecasts Depend on Sustained Observations
Sea ice is a fundamental regulator of Earth’s climate and an increasingly urgent forecast target itself. Can we trust the AI systems now being built to predict it?
Posted inScience Updates
A Snow Machine Traverse Connects Arctic Coastal Communities
A scientific expedition connected community perspectives, landscape conditions, and coastal hazards across nearly 3,200 kilometers of Alaska coastline.
Posted inFeatures
The Effects of Polar Night and Day on Arctic Air Masses
Cold air outbreaks and warm air intrusions link Arctic and midlatitude weather and climate. But a lack of data on these events, especially in winter, limits our understanding.
Posted inAGU News
The Arctic Report Card Matters More Than Ever; AGU Joins Partners to Publish in 2026
The critical and highly anticipated yearly assessment will be carried forward through a partnership with CIRES/CU Boulder and the University of Alaska Fairbanks.
Posted inResearch & Developments
Narwhals Dive Deep to Help Scientists Research the Warming Arctic
Scientists come in all shapes and sizes. Sometimes, that shape is a blubbery 1,000-kilogram whale with a 2-meter tusk.
