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Postponing rewetting will warm climate for centuries

GMC-scientists warn in nature communications

02/04/2020 The positive climate effects of peatland rewetting are determined by the long-term avoidance of carbon dioxide, not by the emission of methane. A research team from the Universities of Rostock and Greifswald shows this in the article Prompt rewetting of drained peatlands reduces climate warming despite methane emissions in the scientific journal nature communications. According to the scientists rapid action is therefore needed to promptly rewet global peatlands. The longer this is postponed, the greater the climate damage.
The team of the WETSCAPES project comes to this conclusion by analysing the worldwide unique data collection on peatland area and land use of the Global Peatland Database of the Greifswald Mire Centre. The scientists investigated the effects of various land use scenarios in a simulation analysis. They calculated the quantity and climate impact of the individual greenhouse gases emitted into the atmosphere in annual steps up to the year 2100.


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