Since April 2024, wide areas of south and south-east Asia, from Pakistan to the Philippines, have experienced prolonged extreme heat. Covering some of the most densely populated regions in the world, the series of heatwaves has affected everything from human health and wellbeing to the economy and education.
Many pupils in India, Bangladesh, and Philippines have been told to stay at home for days due to a severe health risk from extreme heat, while the heatwaves are becoming a major issue in India’s election. Bangladesh even closed all primary schools for weeks while the temperature reached 43.8°C on April 30.
Once the temperature goes above 38°C, it exceeds the core human body temperature (about 37°C) and the chance of heat exhaustion and even heatstroke increases dramatically. This is compounded by increasing humidity in the region which puts additional heat stress on the human body, as sweat is not able to evaporate as effectively (the primary mechanism for cooling the human body).
