Heat in Cities
A summer day that’s warm in the countryside can be unbearably hot in a nearby city. That’s because the buildings and pavement in cities absorb lots of sunlight. This makes cities like islands of heat. The countryside is cooled by water evaporating from lakes and rivers and water released by the plants in forests and fields. Cities with few plants, lakes, and rivers are not cooled very much by evaporation.
People are taking action to help keep cities cooler.
How can we reduce heat in cities? Below are pictures of people taking action to help. In some cities, streets and roofs are being painted with special paint that reflects sunshine. Plants are added to the rooftops, and trees are planted near streets to help keep cities cool.