30 Nov '16, 6pm

Soils Could Release 55 Trillion Kilograms of Carbon By Mid-Century

Soils Could Release 55 Trillion Kilograms of Carbon By Mid-Century

30 Nov 2016: Soils Could Release 55 Trillion Kilograms of Carbon By Mid-Century Shutterstock Permafrost in Greenland. The world’s soils act as critical storage for carbon, sequestering CO2 from the atmosphere to fuel plant and microbial activity. But scientists warned this week that as soils warm in response to climate change, they could release 55 trillion kilograms of carbon into the atmosphere by mid-century — roughly equivalent to the projected emissions of the United States, or 17 percent of all countries, during that same period. The largest losses will be from high-latitude ecosystems, the new study, published in the journal Nature , said. This includes Arctic and sub-Arctic permafrost, where colder temperatures and slow microbial activity have led to the buildup of massive carbon reserves over thousands of years. The scientists found that for every 1 degree Celsius...

Full article: http://e360.yale.edu/digest/soils_could_release_55_trilli...

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