Oasis effect

When that water evaporates or transpirates, heat from the surroundings is used to convert liquid to gas in an endothermic process, which results in cooler local temperatures.

[2] The oasis effect plays a role in urban development because plants and bodies of water result in cooler cities.

Accordingly, cities with parks will have lower temperatures because plants have higher albedo than bare ground or roads.

[5] Normally, cities are hotter than their suburbs due to dense population, dark buildings and roads, and pollution; this is known as the urban heat island effect.

However, by careful placement of trees, parks, and plant life, cities can create their own oasis effect.