Cheap, low-energy evaporative cooling devices are keeping water, food, people, and even whole buildings cool across India. 

Learn about your ad choices: <a href="https://dovetail.prx.org/ad-choices">dovetail.prx.org/ad-choices</a>

Cheap, low-energy evaporative cooling devices are keeping water, food, people, and even whole buildings cool across India. Learn about your ad choices: dovetail.prx.org/ad-choices

Cheap, low-energy evaporative cooling devices are keeping water, food, people, and even whole buildings cool across India. 

Learn about your ad choices: <a href="https://dovetail.prx.org/ad-choices" rel="noopener noreferrer">dovetail.prx.org/ad-choices</a>

This Ancient Technology Is Helping Millions Stay Cool

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Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and society.

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This Ancient Technology Is Helping Millions Stay Cool

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