Response to Comments on "Saturation of the Southern Ocean CO 2 Sink Due to Recent Climate Change"

We estimated a weakening of the Southern Ocean carbon dioxide (CO 2 ) sink since 1981 relative to the trend expected from the large increase in atmospheric CO 2 . We agree with Law et al . that network choice increases the uncertainty of trend estimates but argue that their network of five locations...

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Bibliographic Details
Published in:Science
Main Authors: Le Quéré, Corinne, Rödenbeck, Christian, Buitenhuis, Erik T., Conway, Thomas J., Langenfelds, Ray, Gomez, Antony, Labuschagne, Casper, Ramonet, Michel, Nakazawa, Takakiyo, Metzl, Nicolas, Gillett, Nathan P., Heimann, Martin
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2008
Subjects:
Southern Ocean
Online Access:http://dx.doi.org/10.1126/science.1147315
https://www.science.org/doi/pdf/10.1126/science.1147315
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Summary:We estimated a weakening of the Southern Ocean carbon dioxide (CO 2 ) sink since 1981 relative to the trend expected from the large increase in atmospheric CO 2 . We agree with Law et al . that network choice increases the uncertainty of trend estimates but argue that their network of five locations is too small to be reliable. A future reversal of Southern Ocean CO 2 saturation as suggested by Zickfeld et al . is possible, but only at high atmospheric CO 2 concentrations, and the effect would be temporary.

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