雅思阅读

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The phenomenon of urban heat islands (UHIs) has garnered increasing attention in climate research due to its profound implications for energy consumption and public health. UHIs occur when metropolitan areas experience higher temperatures than their rural surroundings, primarily because of the prevalence of heat-absorbing materials such as concrete and asphalt, coupled with the reduction of vegetation. Recent studies indicate that the intensity of UHIs is exacerbated by anthropogenic heat release from vehicles and air conditioning systems, creating a feedback loop that further elevates urban temperatures. Mitigation strategies, including green roofs and reflective pavements, have been proposed, but their effectiveness varies with local climatic conditions and urban morphology. Understanding these dynamics is crucial for developing sustainable urban planning policies aimed at reducing thermal discomfort and lowering carbon footprints.