There are several factors contributing to urban heat island like 'canyon geometry' which acts as a sunlight trap, building materials with high heat absorbers, the greenhouse effect, anthropogenic heat sources, less cooling by evaporation
sources (plants, water body, etc.) and the pattern of wind movement .
Heated water generated by power plants or manufacturing plants may be controlled with, cooling ponds, man-made bodies of water designed for cooling by evaporation
, convection, and radiation.
Subject: The RiTemp Process--Mold Cooling by Evaporation