Alaska Tundra Source of Early-Winter Carbon Emissions

Three years of observations from NASA’s Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) airborne mission were used in a new study that shows warmer temperatures and thawing soils may be driving an increase in carbon dioxide emissions from Alaskan tundra to the atmosphere.

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Winter sun setting over the tundra polygons in northern Alaska in November 2015. As winter sets in and snow settles, the soils take time to freeze completely and continue to emit carbon dioxide long into the new year. Credits: NASA/JPL-Caltech/Charles Miller
Mission: 
CARVE