It is how the body releases water to cool the skin.
VOA: special.2010.07.27
The crippled plant's owner is still trying to manage hundreds of thousands of tons of radioactive water used to cool the reactors, and scientists believe some of that is still seeping into the Pacific.
Trees and plants also play an important role to help induce airflow and provide shade on hotter days in courtyards, and wateris a common element because it can help cool the air through evaporation and can have a calming effect on the space.