Abstract
We present global warming scenarios computed with an intermediate-complexity atmosphere-ocean-sea ice model which has been extensively validated for a range of past climates (e.g., the Last Glacial Maximum). Our simulations extend to the year 3000, beyond the expected peak of CO2 concentrations. The thermohaline ocean circulation declines strongly in all our scenarios over the next 50 years due to a thermal effect. Changes in the hydrological cycle determine whether the circulation recovers or collapses in the long run. Both outcomes are possible within present uncertainty limits. In case of a collapse, a substantial long-lasting cooling over the North Atlantic and a drying of Europe is simulated.
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References
Bond, G., Broecker, W., Johnsen, S. McManus, J., Labeyrie, L., Jouzel, J., and Bonani, G.: 1993, ‘Correlations between Climate Records from North Atlantic Sediments and Greenland Ice’, Nature 365, 143–147.
Bond, G., Showers, W., Cheseby, M., Lotti, R., Almasi, P., deMenocal, P., Priore, P., Cullen, H., Hajdas, I., and Bonani, G.: 1997, ‘A Pervasive Millennial-Scale Cycle in North Atlantic Holocene and Glacial Climates’, Science 278, 1257–1266.
Broecker, W.: 1987, ‘Unpleasant Surprises in the Greenhouse?’, Nature 328, 123.
Broecker, W.: 1997, ‘Thermohaline Circulation, the Achilles Heel of our Climate System: Will Man-Made CO2 Upset the Current Balance?’, Science 278, 1582–1588.
Campbell, C. J. and Laherrère, J. H.: 1998, ‘The End of Cheap Oil’, Scientific American (March), 60–65.
Dansgaard, W., Johnsen, S. J., Clausen, H. B., Dahl-Jensen, N. S., Gundestrup, N. S., Hammer, C. U., Hvidberg, C. S., Steffensen, J. P., Sveinbjörnsdottir, A. E., Jouzel, J., and Bond, G.: 1993, ‘Evidence for General Instability of Past Climate from a 250-kyr Ice-Core Record’, Nature 364, 218–220.
Ganopolski, A., Kubatzki, C., Claussen, M. Brovkin, V., and Petoukhov, V.: 1998a, ‘The Role of Vegetation-Atmosphere-Ocean Interaction for the Climate System during the Mid-Holocene’, Science 280, 1916–1919.
Ganopolski, A., Rahmstorf, S., Petoukhov, V., and Claussen, M.: 1998b, ‘Simulation of Modern and Glacial Climates with a Coupled Global of Intermediate Complexity’, Nature 391, 350–356.
Ganopolski, A., Petoukhov, V., Rahmstorf, S., Brovkin, V., Claussen, M., and Kubatzki, C.: 1998c, ‘CLIMBER-2: A Climate System Model of Intermediate Complexity, Part II: Model Sensitivity’, Clim. Dyn., submitted.
Houghton, J. T., Meira Filho, L. G., Callander B. A., Harris, N., Kattenberg, A., and Maskell, K.: 1995, Climate Change 1995, Cambridge University Press, Cambridge, p. 572.
Keeling, C. D. and Whorf, T. P.: 1991, Trends 91: A Compendium of Data on Global Change, Boden, T. A. et al. (eds.), Oak Ridge Natl. Lab., Oak Ridge, TN.
Lindzen, R. S.: 1990, ‘Some Coolness Converning Global Warming’, Bull. Amer. Meteorol. Soc. 71, 288–299.
Lindzen, R. S.: 1993, ‘Absence of Scientific Basis’, Res. Exploration 9, 191–200.
Maier-Reimer, E. and Hasselmann, K.: 1987, ‘Transport and Storage of CO2 in the Ocean — An Inorganic Ocean-Circulation Carbon Cycle Model’, Clim. Dyn. 2, 63–90.
Manabe, S., Spelman, M. J., and Stouffer, R. J.: 1992, J. Climate 5, 105–126.
Manabe, S. and Stouffer, R. J.: 1988, ‘Two Stable Equilibria of a Coupled Ocean-Atmosphere Model’, J. Climate 1, 841–866.
Manabe, S. and Stouffer, R. J.: 1993, ‘Century-Scale Effects of Increased Atmospheric CO2 on the Ocean-Atmosphere System’, Nature 364, 215–218.
Manabe, S. and Stouffer, R. J.: 1994, ‘Multiple-Century Response of a Coupled Ocean-Atmosphere Model to an Increase of Atmospheric Carbon Dioxide’, J. Climate 7, 5–23.
Neftel, A., Friedli, H., Moore, E., Lotscher, H., Oeschger, H., Siegenthaler, U., and Stauffer, B.: 1990, Trends 90: A Compendium of Data on Global Change, Boden, T. A. et al. (eds.), Oak Ridge Natl. Lab., Oak Ridge, TN.
Petoukhov, V., Ganapolski, A., Brovkin, V., Clausen, M., Eliseev, A., Kubatzki, C., and Rahmstorf, S.: 1998, ‘CLIMBER-2: A Climate System Model of Intermediate Complexity, Part 1: Model Description and Performance for Present Climate’, Clim. Dyn., submitted.
Rahmstorf, S.: 1996, ‘On the Freshwater Forcing and Transport of the Atlantic Thermohaline Circulation’, Clim. Dyn. 12, 799–811.
Rahmstorf, S.: 1997, ‘Risk of Sea-Change in the Atlantic’, Nature 388, 825–826.
Rahmstorf, S., Marotzke, J., and Willebrand, J.: 1996, ‘Stability of the Thermohaline Circulation’, in Krauss, W. (ed.), The Warm Water Sphere of the North Atlantic Ocean, Borntraeger, Stuttgart, pp. 120–158.
Roemmich, D. H. and Wunsch, C.: 1985, ‘Two Transatlantic Sections: Meridonial Circulation and Heat Flux in the Subtropical North Atlantic Ocean’, Deep-Sea Res. 32, 619–664.
Schiller, A., Mikolajewicz, U., and Voss, R.: 1997, ‘The Stability of the Thermohaline Circulation in a Coupled Ocean-Atmosphere General Circulation Model’, Clim. Dyn. 13, 325–347.
Schneider, S. H, Peteet, D. M., and North, G. R.: 1987, ‘A Climate Model Intercomparison for the Younger Dryas and its Implications for Paleoclimatic Data Collection’, in Berger, W. H. and Labeyrie, D. (eds.), Abrupt Climatic Change, D. Reidel, Dordrecht, pp. 399–417.
Severinghaus, J., Sowers, T., Brook, E. J., Alley, R. B., and Bender, M. L.: 1998, ‘Timing of Abrupt Climate Change at the End of the Younger Dryas Interval from Thermally Fractionated Gases in Polar Ice’, Nature 391, 141–146.
Stocker, T. and Schmittner, A.: 1997, ‘Influence of CO2 Emission Rates on the Stability of the Thermohaline Circulation’, Nature 388, 862–865.
Stocker, T. and Wright, D. G.: 1991, ‘A Zonally Averaged Ocean Model for the Thermohaline Circulation, Part II: Interocean Circulation in the Pacific Atlantic Basin System’, J. Phys. Oceanog. 21 1725–1739.
Stommel, H.: 1961, ‘Thermohaline Convection with Two Stable Regimes of Flow’, Tellus 13, 224–230.
White, J. W. C.: 1993, ‘Don't Touch that Dial’, Nature 364, 186.
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Rahmstorf, S., Ganopolski, A. Long-Term Global Warming Scenarios Computed with an Efficient Coupled Climate Model. Climatic Change 43, 353–367 (1999). https://doi.org/10.1023/A:1005474526406
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DOI: https://doi.org/10.1023/A:1005474526406
Keywords
- Europe
- Global Warming
- Thermal Effect
- Drying
- Ocean Circulation