Map 27.1 - Changes in January surface air temperature (šC) over Europe as a result of doubled CO2:

Source: IPCC, 1992

a) results from general circulation model (GCM) of the National Center for Atmospheric Research, Boulder, Colorado, USA, relative to the GCM control;

b) results from nested mesoscale model relative to the nested model control (Giorgi et al, 1991)