Urban heating

Urban heating

Buildings, asphalt and concrete absorb solar energy, that ultimately results in the emission of long-wave radiation that heats the air in cities. Cities also use large amounts of energy and emit this energy as waste heat, adding to the urban ‘heat island effect’, causing the temperature in urban areas to be higher than surrounding rural areas  (Jean-Philippe & Hubbard, 2015). Elevated temperatures from urban ‘heat islands’ can affect a community’s environment and quality of life. While some impacts may be beneficial, such as lengthening a plant's growing season, the majority of the impacts are negative.

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Cooling Singapore

Cooling Singapore

Urban heating in Hong Kong

Urban heating in Hong Kong