In comparing soils from two tundra wetland landscape positions, landscape position is found to matter, and toeslopes are associated with higher greenhouse gas production.
permafrost
Posted inNews
Experiments Reveal How Permafrost Carbon Becomes Carbon Dioxide
Field samples from Alaska show how sunlight and iron convert permafrost carbon to carbon dioxide. Climate models ignore this process.
Posted inNews
The Ticking Time Bomb of Arctic Permafrost
Arctic infrastructure is under threat from thawing permafrost.
Posted inResearch Spotlights
How Does a Greening Arctic Affect Groundwater Recharge?
New research examines how shifts in aboveground ecology influence belowground hydrology in the Arctic.
Posted inNews
Reindeer Could Trample Permafrost Thaw
Thick, fluffy snow traps summer’s heat in the top layers of Arctic permafrost even as winter chills the air above. Grazing animals stomp that snow flat.
Posted inResearch Spotlights
Where Does the Carbon Go When Permafrost Coasts Erode?
Arctic coastlines have not been considered carefully in carbon cycles for long, but new research suggests that eroding permafrost may emit more greenhouse gases than previously thought.
Posted inEditors' Highlights
Permafrost Thaws Rapidly as Arctic River Flooding Increases
As climate warms, Arctic rivers carry higher flows and flood earlier in the spring, causing underlying permafrost to thaw rapidly.
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.