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This Ancient Technology Is Helping Millions Stay Cool
Cheap, low-energy evaporative cooling devices are keeping water, food, people, and even whole buildings cool across India.
Led by Vivek Gilani, it has experimented with simple and affordable cooling ideas like insulating ceiling boards made out of recycled compressed Tetra packs and plastic objects, rooftop gardening in grow bags, and wood-wool cement composites. The health risks of living in asbestos or tin-topped homes are severe, especially in tightly packed dwellings where indoor temperatures can be higher than outdoors, and high humidity makes the situation even worse. People prefer a traditional house made out of brick and cement for its structural integrity, says Fatema Mohammad Chappalwala, an environmentalist and program coordinator at the Sambhaavnaa Institute of Public Policy and Politics.
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