Canada-Ontario Climate Report
Canada‘s climate has warmed and will warm further in the future. Both observed and projected increases in average temperatures in Canada are about double the corresponding increases in global average temperatures, regardless of the emissions scenario.
Annual and seasonal average temperatures have increased across Canada. Human activities and natural climate variations have contributed to the observed warming, but the human factor is predominant. Future projections confirm an increase in annual and seasonal averages everywhere, with the largest changes in northern Canada during winter.
Projected warming in a low emissions scenario is about 2°C higher than in the 1986-2005 reference period, remaining relatively constant after 2050. In a high emissions scenario, the temperature increase will continue, reaching more than 6°C by the end of the 21st century.
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