(IMAGE) Karlsruher Institut für Technologie (KIT) Caption Urban heat islands in cities like Karlsruhe are influenced by factors, such as population density, surface sealing, vegetation, thermal radiation of buildings, industry, and transport. Credit Photo: KIT Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.