This, in addition to higher night time temperatures, makes heatwaves more intense and deadly, especially for the poor, who get little respite from heat fatigue. This is called the urban heat island effect. And since heat is trapped in built-up structures, greater urbanisation has a direct correlation with the rise in night temperatures. Almost all of them witnessed an increase in nighttime temperatures, with the mean rate for temperature increase being 0.52+/-0.19 degree Celsius, per decade. How humidity and warm nights impact the human bodyThe rise in temperatures, humidity, and warmer nights together make the summer more deadly for human beings.

Source: Indian Express May 31, 2024 21:34 UTC