Breadcrumb Home Videos What Makes Cities So Hot? This video is a part of Animated Atmosphere, a suite of short videos produced by the UCAR Center for Science Education with FableVision Studios. A city can be several degrees warmer than the surrounding area. Learn how this phenomenon, called the urban heat island effect, occurs and find out what can be done to keep cities cool. Learn More Urban Heat Islands Extreme Events and Human Health Raise the Roof on Urban Heat More Educational Videos