Business
2026.07.12 16:58 GMT+8
No ACs needed: How China's Jinan is cooled from underground
Updated 2026.07.12 16:58 GMT+8
CGTN
Beneath the Central Business District of Jinan in eastern China's Shandong province, a heat-exchange system 21 meters underground keeps buildings cool by circulating chilled water. Less noise. Higher efficiency. Smarter cities.
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