Understanding and Assessing Impacts
Research indicates that the intensity and frequency of wildfires, as well as the duration of the wildfire season, is expected to increase under a changing climate. The Horse River Fire was the single most expensive natural disaster to ever occur in Canada, causing some $9 billion in damages and leading to response from all three levels of government as well as the private and non-profit sectors. The fire occurred during an unusually hot and dry period, with temperatures above 30C and a relative humidity as low as 12%. Though many fires in the region are caused by lightning, this particular fire is suspected to have been human-caused, though no one has ever been arrested for it. The fire was not officially recorded as ‘out’ until the following year, having sustained itself by smouldering in the undergrowth throughout the winter. A cumulative 3,244 structures are recorded as having been destroyed. One response to this event was to implement an extensive FireSmart education and implementation program, to lessen the effects of any future fires.