forçage dû au dioxyde de carbone

CONT: In the Northern Hemisphere, the latitudinal and seasonal patterns of the early twentieth century warming are remarkably similar to the patterns predicted by the equilibrium response general circulation model study of Manabe and Stouffer for a quadrupling of CO[subscript 2] concentration. If this similarity was a result of early twentieth century CO[subscript 2] forcing then it may indicate that equilibrium models can give realistic results ... If CO[subscript]2 [is] not the dominant forcing mechanism then this similarity supports the idea that the latitudinal patterns of climatic change are largely independent of the type of forcing.

CONT: Las reducciones de la cubierta de nieve han disminuido la reflectividad de la superficie, provocando casi tanto calentamiento local como el forzamiento de dióxido de carbono durante los últimos 30 años.