Staying Cool Naturally Ielts Reading Answers Now

One of the most effective passive cooling strategies is the use of thermal mass . Materials such as stone, adobe, and concrete have a high specific heat capacity, meaning they absorb heat during the day and release it slowly at night when temperatures drop. In the ancient city of Yazd in central Iran, buildings constructed from thick mud-brick remain cool during scorching summer days. Similarly, the stepwells of India — deep, multi-storey structures carved into the earth — maintain consistently low temperatures because the surrounding ground acts as an enormous heat sink.

In humid tropical regions, evaporative cooling is less effective because the air is already saturated with moisture. Here, traditional architecture prioritises ventilation and shading . The Malay house, for example, is raised on stilts to allow air to flow underneath the floor, while large overhanging roofs and porous bamboo or timber walls permit cross-ventilation. Courtyards also play a crucial role: they act as thermal regulators by providing shaded outdoor spaces and drawing cooler night air into surrounding rooms. Research from the University of California has shown that a well-positioned courtyard can reduce cooling energy requirements by up to 30%. Staying Cool Naturally Ielts Reading Answers

Another elegant solution is the wind catcher , or badgir , also originating from Persia. These tower-like structures rise above the roofline of a building and are designed to capture prevailing winds. Internal vertical partitions direct air downwards, often passing it over a pool of water or a qanat (an underground water channel) to provide additional evaporative cooling. Even when there is no wind, the temperature differential between the top and bottom of the tower can create a natural updraft, drawing hot air out of the building. Modern computational fluid dynamics simulations have confirmed that well-designed wind catchers can reduce indoor temperatures by up to 12°C compared to the outside. One of the most effective passive cooling strategies