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. 2015 Mar 6;42(5):1459–1464. doi: 10.1002/2015GL063070

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©2015. The Authors.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Effect of buffer factor on CO_2(aq) drawdown by biology calculated as in equation (4). Blue: CO₂ drawdown with present-day buffer factor and biological carbon drawdown (gross primary production minus respiration minus remineralization). Red: future buffer factor and present-day biological carbon drawdown. Red, dashed: future buffer factor and future biological carbon drawdown. Present day: mean seasonal cycle 2012 to 2031, future: 2081 to 2100. Change in buffer factor has a much larger effect on CO_2(aq) drawdown (and hence CO₂ uptake) than increase in biological production. January is shown as the first and again as the last month of the seasonal cycle.