Global warming makes tropical soils leak CO2: study – Macau Business

Tropical forest soil warmed in experiments to levels consistent with end-of-century temperature projections released 55 percent more CO2 than control plots, exposing a previously underestimated source of greenhouse gas emissions, researchers reported Wednesday.
Before humanity began loading the atmosphere with carbon pollution by burning fossil fuels, the input and outflow of CO2 into soil — one key element in Earth’s complex carbon cycle — remained roughly in balance. 
Gases emitted by deadwo…

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