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Essay Archive - Urban Heat Islands
Urban Heat Islands
For more than 100 years, it has been known that two adjacent cities are
generally warmer than the surrounding areas. This region of city warmth, known
as an urban heat island, can influence the concentration of air pollution. The
urban heat island is formed when industrial and urban areas are developed and
heat becomes more abundant. In rural areas, a large part of the incoming solar
energy is used to evaporate water from vegetation and soil. In cities, where
less vegetation and exposed soil exists, the majority of the sun's energy is
absorbed by urban structures and....
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