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AbstractA simulation of projected changes in mean annual precipitation
from the period 1975 to 1995 to the period 2080 to 2100 is shown here. On average,
precipitation increases, but it is not evenly distributed geographically. There
are marked regions of decreasing, as well as increasing precipitation, over
both land and ocean. Annual average precipitation generally increases over northern
continents, and particularly during the winter. 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.
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