If you watch the evening news, you may have noticed that cities are often warmer than the surrounding rural or suburban landscapes. For the first time in human history, more people live in cities than rural environments and this trend is likely to increase.
… contiguity or how the built infrastructure is connected—and disconnected by green spaces—has a great impact on heat island intensity. Ultimately, this work seeks to inform planners and stakeholders on how to strategically plan cities with heat island reduction in mind.
It is fascinating that even some cities, particularly those in arid regions like Las Vegas or Phoenix, can exhibit a cool island. These cities typically have extensive irrigation, which may help cool the city relative to the hot, sand surrounding landscape.
The impact of heat islands is not limited to temperature. UHIs may also impact air quality, wind flow, and the development of thunderstorms.(2015) September, by Dr. Marshall Sheperd in Forbes.