Permafrost thawing as a possible source of abrupt carbon release at the onset of the Bølling/Allerød

@inproceedings{Khler2014PermafrostTA,
  title={Permafrost thawing as a possible source of abrupt carbon release at the onset of the B\olling/Aller\od},
  author={Peter K{\"o}hler and Gregor Knorr and Edouard Bard},
  booktitle={Nature communications},
  year={2014}
}
One of the most abrupt and yet unexplained past rises in atmospheric CO2 (>10 p.p.m.v. in two centuries) occurred in quasi-synchrony with abrupt northern hemispheric warming into the Bølling/Allerød, ~14,600 years ago. Here we use a U/Th-dated record of atmospheric Δ(14)C from Tahiti corals to provide an independent and precise age control for this CO2 rise. We also use model simulations to show that the release of old (nearly (14)C-free) carbon can explain these changes in CO2 and Δ(14)C. The… CONTINUE READING
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