Extreme heat is a silent threat to Canada's workforce, quietly increasing the risk of injuries and compromising worker safety. As heat warnings blanket the country, from the Atlantic provinces to the Prairies and the Northwest Territories, the consequences for workers are dire. The most immediate effects are heat exhaustion and heat stroke, but the less visible impact is the transformation of routine workplace hazards into injuries. High temperatures, through dehydration, fatigue, and impaired cognitive function, make ordinary workplace accidents more likely, from falls to vehicle crashes. This hidden burden is further exacerbated by the lack of a common minimum standard for protecting workers from extreme heat across Canada's provinces and territories. The current rules vary significantly, with some regions relying on broad employer duties and others setting specific exposure limits. This patchwork of regulations leaves workers vulnerable, as the effects of heat are often not adequately addressed, and the consequences are often underreported. The need for clear triggers, practical controls, and enforcement is evident, as evidenced by California's successful heat-related death reduction strategy. Canada must establish a unified, comprehensive standard to safeguard its workers, ensuring that heat waves do not become a recurring challenge but rather a manageable and predictable aspect of the job.
