Warmed peat bogs flip from carbon sinks to emitters, alarming climate scientists
Peatlands, which hold a major share of the world's soil carbon, are beginning to release that carbon rather than store it. Scientists conducted experiments warming peat bogs by up to 9 degrees Celsius to study the effects of rising temperatures on these ecosystems. Even modest warming of around four degrees Fahrenheit was enough to trigger this shift from carbon absorption to carbon emission. Researchers found that carbon was being lost at rates far exceeding the pace at which peatlands had historically accumulated it. These findings are expected to significantly affect global climate models and long-term climate projections.
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