This Ancient Technology Is Helping Millions Stay Cool
Open link in next tab
This Ancient Technology Is Helping Millions Stay Cool
https://www.wired.com/story/evaporative-cooling-devices-coolant-clay-matka-mitticool-india-heat-wave/
Cheap, low-energy evaporative cooling devices are keeping water, food, people, and even whole buildings cool across India.
It ain't how much you've got, it's how you use it.