urban heat island
An urban heat island (UHI) is a phenomenon where urban areas experience higher temperatures than their rural surroundings. This temperature difference is primarily due to human activities, such as the use of concrete and asphalt, which absorb and retain heat. Additionally, buildings and vehicles generate heat, further contributing to the warmer environment in cities.
The UHI effect can lead to increased energy consumption, elevated emissions of air pollutants, and health risks for residents. Strategies to mitigate UHI include increasing green spaces, using reflective materials for roofs, and implementing urban planning practices that promote natural cooling, such as planting trees and creating parks.