Climate Change and Heat Exhaustion: A Study in Kahuta

Heat exposure is a well-known health risk that impairs human performance and capacity to function at temperatures that are already typical in tropical and subtropical climates. Global climate change is characterized by increased exposure to heat throughout the year's warmest seasons. In health effect analyses of climate change, heat fatigue and diminished human performance are frequently disregarded. Due to climate change, people who live in hot regions of the world will have much less labor capability later this century. Thirty to forty percent of the yearly daylight hours will be too hot for employment in some places. The effects of the rapidly changing Earth's climate on the environment and human health have already been established. Heat stress in the workplace today and in the future is mostly caused by the urban "heat island effect," physical labor, individual variances, and the setting of developing nations, where technical solutions are sometimes inapplicable.