This table shows model estimates of how the total uptake of carbon by the ocean might be affected by climate change and the biological response to this.  Note that the first column of numbers is for a different time period than the second two . Sources: Sarmiento, J.L., T.M.C. Hughes, R.J. Stouffer, and S. Manabe, Simulated response of the ocean carbon cycle to anthropogenic climate warming, Nature, 393, 245-249, 1998. Matear, R.J., and A.C. Hirst, Climate change feedback on the future oceanic CO2 uptake, Tellus, 51B (3), 722-733, 1999. Joos, F., G.K. Plattner, T.F. Stocker, O. Marchal, and A. Schmittner, Global Warming and Marine Carbon Cycle Feedbacks on Future Atmospheric CO2, Science, 284, 464-467, 1999.