Soil release far more CO2 than previously assumed, researchers find

Rising atmospheric CO2 content soils are probably less carbon dioxide than scientists save and climate models had predicted, according to a new study in science published. Scientists have long understood that rising carbon dioxide concentration in the atmosphere stimulate photosynthesis and plant growth, adding more carbon in the soil. Scientists had thought that soil carbon was relatively stable and way could remain locked for centuries. However, the new study by researchers at Northern Arizona University shows that more and more soil carbon actually microbes more CO2 producing spores. Higher atmospheric CO2 levels added to about 20 per cent more CO2 in the ground, by increased photosynthesis, but they also increased CO2 sales by microbes to 16.5 percent. Many climate models had previously assumed that more of carbon from soils, remained well absorbed there for a long time. "Our results mean that nature not so efficient so far thought global warming, as we of the slowdown," the investigator said. "CO2 increased with a view to this effect on the soil microbes, models of Intergovernmental Panel on climate change used by possibly overrated have save the potential of soil carbon and mitigate the greenhouse effect."

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