Canadian Heat Waves Declining?

The world climate report reports from an article in the recent issue of Theoretical and Applied Climatology which suggests that heat waves in Canada are decreasing despite the increased temperature.

Canada's extreme temperatures have “shown no significant trend over the course of the 20th century (1900–1998) for the higher percentiles of daily summer maxima.”

The researchers of the previous study “concluded that the number of extreme hot days showed little change, in spite of the increase in mean annual temperature by 0.9°C between 1900 and 1998.”