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Workplace heat stress is a well-known occupational health hazard, and climate change characterized by the increased frequency and intensity of extreme heat events has made risks more severe and widespread. Heat stress is prevalent in numerous industrial and commercial occupational settings, either outdoors or indoors. Operations that involve high environmental heat, physically demanding activities or impermeable protective clothing have a high potential for incurring heat stress among exposed workers. Workplaces with such conditions may include firefighting, iron and steel manufacturing, mining, glass factories and food canneries. Outdoor tasks performed in hot weather and under direct exposure to sunlight, such as construction, agriculture, oil and gas well operations, and outdoor horticulture and cleaning, are also likely to induce heat stress to employees. This editorial paper highlights the current …