Technical Comments

Comment on "Saturation of the Southern Ocean CO2 Sink Due to Recent Climate Change"

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Science  01 Feb 2008:
Vol. 319, Issue 5863, pp. 570
DOI: 10.1126/science.1149077

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Unlike Le Quéré et al. (Reports, 22 June 2007, p. 1735), we do not find a saturating Southern Ocean carbon sink due to recent climate change. In our ocean model, observed wind forcing causes reduced carbon uptake, but heat and freshwater flux forcing cause increased uptake. Our inversions of atmospheric carbon dioxide show that the Southern Ocean sink trend is dependent on network choice.

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