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May 22 2013

Thawing Tundra May Produce Less CO2


Researchers have uncovered a mechanism in the Alaskan tundra that doesn't seem to follow the climate change script for soil carbon.

For years, scientists have shown that rising temperatures stimulate microbes that decay plant matter, releasing carbon more quickly into the atmosphere. But when Seeta Sistla, a doctoral student at the University of California, Santa Barbara, came to collect data for a 20-year-old experiment at the U.S. Arctic Long-Term Ecological Research site in northern Alaska, the soil carbon levels at the site were curiously stable.

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