How an ancient water tunnel design is cooling 21st-century streets
Briefly

Seville is transforming 3,000-year-old underground aqueduct technology for sustainable, energy-efficient air-conditioning solutions as cities grapple with intense heatwaves and rising temperatures globally.
Qanats, ancient underground canals originating from Persia, are being adapted to cool buildings sustainably by utilizing gravity to transport water through networks of underground tunnels, offering a unique response to modern climate challenges.
Read at www.aljazeera.com
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