Question

 

Explain the causes and mechanism of urban heat island effect. Discuss the strategies to minimize impacts of climate change on urban ecosystems.

21 Jul 2025
Answer :
Word Count : 1074
The phenomenon of Urban Heat Island (UHI) effect is a significant consequence of rapid urbanization and is closely linked to climate change and its impacts on urban ecosystems. It refers to the temperature difference between urban areas and their surrounding rural counterparts, where urban regions tend to be significantly warmer. The UHI effect exacerbates the impacts of climate change, increasing energy consumption, worsening air pollution, and intensifying health risks, especially in densely populated cities. Understanding the causes and mechanisms of this effect is vital in formulating effective strategies to mitigate the broader implications of climate change on urban ecosystems. The primary causes of the Urban Heat Island effect stem from human-induced alterations to the natural environment, particularly through land-use changes, infrastructure development, and energy consumption patterns. One of the major contributors is the replacement of natural vegetation with concrete, asphalt, and buildings. These materials have high thermal mass and low albedo, which means they absorb and retain heat more efficiently than natural landscapes. During the day, urban surfaces absorb solar radiation and store it as heat; at night, this _____ ____ _______ _______ __________ ______ _______ ___ _______ _____ ________.
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