Colder soils are more vulnerable to releasing extra carbon in a warmer world
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The huge stores of carbon locked in the world’s soils are more vulnerable to rising temperatures than previously thought.
Researchers found that microbes in the soil were more likely to enhance the release of CO2 in a warming world.
Soils from colder regions and those with greater amounts of carbon were seen to emit more as temperatures went up.
The research has been published in the journal Nature.
The world’s soils hold about twice the amount of carbon as the atmosphere.
Every year the activities of microbes in the soil on organic matter release around 60bn tonnes of carbon dioxide into the air.