Abstract

A simulation of projected changes in annual mean precipitation from the period 1961 to 1990 to the period 2040 to 2060 for Canadian lands is shown here. In general, precipitation would increase as the century progresses and the climate warms and this is reflected in the annual average pattern. Also, the simulations show there are regions of both increasing and decreasing precipitation. Warmer surface temperature would speed up the hydrological cycle at least partially, resulting in faster evaporation and more precipitation. The results are based on climate change simulations made with the Coupled Global Climate Model developed by Environment Canada.