Rewetting Dried Wetlands Could Stop 100 Billion Tons of CO2 Emissions

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  • Studies show that restoring dried-out wetlands could avoid emissions equivalent to more than 100 billion tonnes of CO2 by the end of the century.
  • Researchers from the Southern University of Science and Technology in China found that although wetland soil emits methane, the amount of carbon stores in these wetlands offset nearly all the methane emitted when water levels are a few centimetres beneath the ground.
  • They found that restoring over 4 million square kilometres of degraded wetlands to an ideal water level would avoid between 100 and 400 gigatonnes of carbon equivalent.

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