A lower limit to atmospheric CO2 concentrations over the past 800,000 years (original) (raw)
References
Broecker, W. S. & Denton, G. H. The role of ocean–atmosphere reorganizations in glacial cycles. Geochim. Cosmochim. Acta53, 2465–2501 (1989). Article Google Scholar
Jaccard, S. L. et al. Two modes of change in Southern Ocean productivity over the past million years. Science339, 1419–1423 (2013). Article Google Scholar
Sigman, D. M. & Boyle, E. A. Glacial/interglacial variations in atmospheric carbon dioxide. Nature407, 859–869 (2000). Article Google Scholar
Sigman, D. M., Hain, M. P. & Haug, G. H. The polar ocean and glacial cycles in atmospheric CO2 concentration. Nature466, 47–55 (2010). Article Google Scholar
Broecker, W. S., Yu, J. & Putnam, A. E. Two contributors to the glacial CO2 decline. Earth Planet. Sci. Lett.429, 191–196 (2015). Article Google Scholar
Huybers, P. & Langmuir, C. Feedback between deglaciation, volcanism, and atmospheric CO2 . Earth Planet. Sci. Lett.286, 479–491 (2009). Article Google Scholar
Lund, D. C. et al. Enhanced East Pacific Rise hydrothermal activity during the last two glacial terminations. Science351, 478–482 (2016). Article Google Scholar
Ronge, T. A. et al. Radiocarbon constraints on the extent and evolution of the South Pacific glacial carbon pool. Nat. Commun.7, 11487 (2016). Article Google Scholar
Zech, R. A permafrost glacial hypothesis—permafrost carbon might help explaining the Pleistocene ice ages. Quat. Sci. J.61, 84–92 (2012). Google Scholar
Cartapanis, O., Bianchi, D., Jaccard, S. L. & Galbraith, E. D. Global pulses of organic carbon burial in deep-sea sediments during glacial maxima. Nat. Commun.7, 10796 (2016). Article Google Scholar
Royer, D. L. in Treatise on Geochemistry Vol. 6 2nd edn, 251–267 (Elsevier, 2014). Book Google Scholar
Pagani, M., Caldeira, K., Berner, R. & Beerling, D. J. The role of terrestrial plants in limiting atmospheric CO2 decline over the past 24 million years. Nature460, 85–88 (2009). Article Google Scholar
Anagnostou, E. et al. Changing atmospheric CO2 concentration was the primary driver of early Cenozoic climate. Nature533, 380–384 (2016). Article Google Scholar
Montañez, I. P. et al. Climate, _p_CO2 and terrestrial carbon cycle linkages during late Palaeozoic glacial–interglacial cycles. Nat. Geosci.9, 824–828 (2016). Article Google Scholar
Spratt, R. M. & Lisiecki, L. E. A late Pleistocene sea level stack. Clim. Past12, 1079–1092 (2016). Article Google Scholar
Snyder, C. W. Evolution of global temperature over the past two million years. Nature538, 226–228 (2016). Article Google Scholar
Abe-Ouchi, A. et al. Insolation-driven 100,000-year glacial cycles and hysteresis of ice-sheet volume. Nature500, 190–193 (2013). Article Google Scholar
Paillard, D. & Parrenin, F. The Antarctic ice sheet and the triggering of deglaciations. Earth Planet. Sci. Lett.227, 263–271 (2004). Article Google Scholar
Gildor, H. & Tziperman, E. A sea ice climate switch mechanism for the 100-kyr glacial cycles. J. Geophys. Res.106, 9117–9133 (2001). Article Google Scholar
Adkins, J. F., McIntyre, K. & Schrag, D. P. The salinity, temperature, and δ18O of the glacial deep ocean. Science298, 1769–1773 (2002). Article Google Scholar
Manabe, S. & Bryan, K. CO2-induced change in a coupled ocean–atmosphere model and its paleoclimatic implications. J. Geophys. Res.90, 11689–11707 (1985). Article Google Scholar
Ferrari, R. et al. Antarctic sea ice control on ocean circulation in present and glacial climates. Proc. Natl Acad. Sci. USA111, 8753–8758 (2014). Article Google Scholar
Stephens, B. B. & Keeling, R. F. The influence of Antarctic sea ice on glacial–interglacial CO2 variations. Nature404, 171–174 (2000). Article Google Scholar
Brovkin, V., Ganopolski, A., Archer, D. & Munhoven, G. Glacial CO2 cycle as a succession of key physical and biogeochemical processes. Clim. Past8, 251–264 (2012). Article Google Scholar
Gildor, H., Tziperman, E. & Toggweiler, J. R. Sea ice switch mechanism and glacial-interglacial CO2 variations. Glob. Biogeochem. Cycles16, 3 (2002). Article Google Scholar
Hoffman, P. F., Kaufman, A. J., Halverson, G. P. & Schrag, D. P. A neoproterozoic snowball earth. Science281, 1342–1346 (1998). Article Google Scholar
Pierrehumbert, R. T., Abbot, D. S., Voigt, A. & Koll, D. Climate of the neoproterozoic. Annu. Rev. Earth Planet. Sci.39, 417–460 (2011). Article Google Scholar
Zeebe, R. E. & Caldeira, K. Close mass balance of long-term carbon fluxes from ice-core CO2 and ocean chemistry records. Nat. Geosci.1, 312–315 (2008). Article Google Scholar
Kump, L. R., Brantley, S. L. & Arthur, M. A. Chemical weathering, atmospheric CO2, and climate. Annu. Rev. Earth Planet. Sci.28, 611–667 (2000). Article Google Scholar
Ridgwell, A. & Hargreaves, J. Regulation of atmospheric CO2 by deep-sea sediments in an Earth system model. Glob. Biogeochem. Cycles21, GB2008 (2007). Article Google Scholar
Ehleringer, J. R., Cerling, T. E. & Helliker, B. R. C4 photosynthesis, atmospheric CO2, and climate. Oecologia112, 285–299 (1997). Article Google Scholar
Quirk, J., Leake, J. R., Banwart, S. A., Taylor, L. L. & Beerling, D. J. Weathering by tree-root-associating fungi diminishes under simulated Cenozoic atmospheric CO2 decline. Biogeosciences11, 321–331 (2014). Article Google Scholar
Ciais, P. et al. Large inert carbon pool in the terrestrial biosphere during the last glacial maximum. Nat. Geosci.5, 74–79 (2012). Article Google Scholar
Riebesell, U. & Tortell, P. D. in Ocean Acidification (eds Gattuso, J.-P. & Hansson, L.) 99–121 (Oxford Univ. Press, 2011). Google Scholar
Hutchins, D. A. et al. CO2 control of Trichodesmium N2 fixation, photosynthesis, growth rates, and elemental ratios: implications for past, present, and future ocean biogeochemistry. Limnol. Oceanogr.52, 1293–1304 (2007). Article Google Scholar
Hutchins, D. A., Fu, F.-X., Webb, E. A., Walworth, N. & Tagliabue, A. Taxon-specific response of marine nitrogen fixers to elevated carbon dioxide concentrations. Nat. Geosci.6, 790–795 (2013). Article Google Scholar
Moore, C. M. et al. Processes and patterns of oceanic nutrient limitation. Nat. Geosci.6, 701–710 (2013). Article Google Scholar
Galbraith, E. D. & Jaccard, S. L. Deglacial weakening of the oceanic soft tissue pump: global constraints from sedimentary nitrogen isotopes and oxygenation proxies. Quat. Sci. Rev.109, 38–48 (2015). Article Google Scholar
Galbraith, E. D. et al. The acceleration of oceanic denitrification during deglacial warming. Nat. Geosci.6, 579–584 (2013). Article Google Scholar
Ren, H. et al. Foraminiferal isotope evidence of reduced nitrogen fixation in the ice age Atlantic Ocean. Science323, 244–248 (2009). Article Google Scholar
Ganeshram, R. S., Pedersen, T. F., Calvert, S. & François, R. Reduced nitrogen fixation in the glacial ocean inferred from changes in marine nitrogen and phosphorus inventories. Nature415, 156–159 (2002). Article Google Scholar
Falkowski, P. G. Evolution of the nitrogen cycle and its influence on the biological sequestration of CO2 in the ocean. Nature387, 272–275 (1997). Article Google Scholar
Eugster, O., Gruber, N., Deutsch, C., Jaccard, S. L. & Payne, M. R. The dynamics of the marine nitrogen cycle across the last deglaciation. Paleoceanography28, 116–129 (2013). Article Google Scholar
Crucifix, M. Oscillators and relaxation phenomena in Pleistocene climate theory. Phil. Trans. R. Soc. A370, 1140–1165 (2012). Article Google Scholar
Lüthi, D. et al. High-resolution carbon dioxide concentration record 650,000–800,000 years before present. Nature453, 379–382 (2008). Article Google Scholar
Bereiter, B. et al. Revision of the EPICA Dome C CO2 record from 800 to 600 kyr before present. Geophys. Res. Lett.42, 542–549 (2015). Article Google Scholar
Bereiter, B. et al. Mode change of millennial CO2 variability during the last glacial cycle associated with a bipolar marine carbon seesaw. Proc. Natl Acad. Sci. USA109, 9755–9760 (2012). Article Google Scholar
Lisiecki, L. E. & Raymo, M. E. A Pliocene-Pleistocene stack of 57 globally distributed benthic δ18O records. Paleoceanography20, PA1003 (2005). Google Scholar
Jouzel, J. et al. Orbital and millennial Antarctic climate variability over the past 800,000 years. Science317, 793–796 (2007). Article Google Scholar