Projected Temperature Change Between 1975-1995 and 2040-2060

Climate changes will not be distributed uniformly. For a doubling of carbon dioxide concentrations, Canadian climate models project an increase of 3.5°C in the earth's average annual temperature but shows more substantial warming over much of Canada, particularily in winter.

Different models have different projections for how much temperatures will change. For instance, the Geophysical Fluid Dynamics Laborartory GCM (GFDL 91) model projects increases of 2 to 6°C in the winter and 2 to 3°C in the summer, while the Goddard Institute for Space Studies GCM (GISS 85) model projects increases of 2 to 14°C in the winter and 1 to 2°C in summer.

Information courtesy Climate Chagne–Government of Canada