New York Times
Summary
Singapore’s prime minister has described climate change as “life and death.” He has reason to worry: Stifling temperatures and humidity already last all year, and the city-state has warmed at twice the global average over the past six decades.
Instead of cooling small spaces individually, Singapore’s Marina Bay, which was centrally planned, cools down many buildings at once by running chilled water through a network of insulated pipes. The district cooling network is far more efficient than multiple small A.C. units, reducing both energy consumption and waste heat.
Other cities have similar systems, including Paris, and so do some American college campuses. But to work efficiently, district cooling often requires coordination between multiple landowners and developers, and retrofitting existing structures is expensive. Singapore, which can centrally plan a large-scale new development like Marina Bay, has an advantage.
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