Irreversible Extreme Heat, penned by experts at the Intact Centre on Climate Change at the University of Waterloo, says “Canadian alarm bells should be…
Irreversible Extreme Heat, penned by experts at the Intact Centre on Climate Change at the University of Waterloo, says “Canadian alarm bells should be ringing” about the risk of intense heat.
The federal government’s website on natural disasters provides links to information on earthquakes, floods, wildfires, hail, icebergs, landslides, avalanches, tornadoes, tsunamis, storm surges, volcanic eruptions and winter storms. Heat is not listed, even though it has proven deadlier and more common in Canada than most of those other threats.
As body temperatures rise it causes a cascading effect to the internal organs, putting stress on the heart, and exacerbating existing conditions. Hot air also leads to poor air quality, affecting people with breathing issues like asthma. Between 1976 and 2005, Windsor, Ont., saw an average of about 25 days above 30 C in a summer. By 2050 that is expected to rise to between 60 and 79 days. In Regina the number of days above 30 C could go from fewer than 20 to more than 50, and in Montreal, from about 10 days to between 35 and 54.
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