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26-10-2021, 07:47 AM
PUBLISHED OCT 25, 2021, 10:53 AM SGT
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Carbon stores, long locked in the permafrost, are now seeping out.
Between carbon dioxide (CO2) and methane, permafrost contains some 1,700 billion tonnes of organic carbon, almost twice the amount of carbon already present in the atmosphere.
Methane lingers in the atmosphere for only 12 years compared to centuries for CO2 but is about 25 times more potent as a greenhouse gas over a 100-year period.
Thawing permafrost is a carbon "time bomb", scientists have warned.
https://www.straitstimes.com/world/thawi...-time-bomb
......
Carbon stores, long locked in the permafrost, are now seeping out.
Between carbon dioxide (CO2) and methane, permafrost contains some 1,700 billion tonnes of organic carbon, almost twice the amount of carbon already present in the atmosphere.
Methane lingers in the atmosphere for only 12 years compared to centuries for CO2 but is about 25 times more potent as a greenhouse gas over a 100-year period.
Thawing permafrost is a carbon "time bomb", scientists have warned.
https://www.straitstimes.com/world/thawi...-time-bomb
