As Colombo heats up, passive cooling offers a low-energy solution — but at a cost

Mongabay
Oct 12, 2026, 7:26 am107 pts
COLOMBO — Fathima Rinoza lives on the fourth floor of a 14-story apartment block in Dematagoda, a suburb of Sri Lanka’s commercial capital, Colombo. She rarely keeps the two windows in her house open for long. The heat becomes unbearable by midday, she says, and the surrounding buildings obstruct wind…

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