As climate warms, Arctic rivers carry higher flows and flood earlier in the spring, causing underlying permafrost to thaw rapidly.
permafrost
Posted inNews
The Permafrost Listeners
Geophysicists have discovered a way to monitor permafrost thaw by measuring seismic waves so gentle they don’t shake a thing.
Posted inResearch Spotlights
How Nitrogen Contributes to Permafrost Carbon Dynamics
Nitrogen released into the soil from thawing permafrost in the Arctic could accelerate soil carbon decomposition and alter carbon dynamics, with global implications.
Posted inScience Updates
A Modeling Toolbox for Permafrost Landscapes
A new resource makes it easier for researchers to explore predictions of how melting permafrost might affect carbon release, wetlands, and river deltas as they evolve and other interacting effects.
Posted inResearch Spotlights
A Deeper Understanding of Carbon Decomposition in Arctic Soils
Physical parameters may help scientists extrapolate Arctic carbon soil losses from the local to the regional scale, according to the results of a yearlong incubation experiment.
Posted inResearch Spotlights
Carbon Release from Permafrost Erosion Along the Yukon Coast
New findings highlight the need to account for large amounts of ground ice contained in frozen soil when assessing Arctic carbon cycling.
Posted inScience Updates
Understanding High-Latitude Methane in a Warming Climate
Climate change could spur greenhouse gas release from the Arctic. A new project will synthesize existing data to improve uncertain predictions.
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Airborne Surveys Examine Water Levels of Lakes Perched on Permafrost
Do water levels in high-latitude Canadian lakes fluctuate as one body or as separate entities? The answer could reveal clues to how melting permafrost influences the environment.
Posted inResearch Spotlights
Searching for Organic Carbon in the Dry Valleys of Antarctica
Researchers identify the first evidence of microbial respiration in desiccated Antarctic permafrost soils.
Posted inResearch Spotlights
Microbes May Thrive in Subsea Permafrost Long After Flooding
Two cores from the East Siberian Arctic Shelf reveal how microbial communities develop over thousands of years as submarine permafrost slowly thaws.