CO₂-induced change in a coupled ocean-atmosphere model and its paleoclimatic implications.

The climatic effects of very large changes of CO₂ concentration in the atmosphere are explored using a general circulation model of the coupled ocean-atmosphere system. As a simplification the model has an annual mean insolation and a highly idealized geography. A series of climatic equilibria are obtained for cases with 0.5, 1 square root 2; 1,2,4, and 8 times the present CO₂ concentration in the atmosphere. The results from these six numerical experiments indicate the climatic signatures of large CO₂ changes in the atmosphere and in the abyssal and surface waters of the ocean.-from Authors