Asked in Wind Power
Wind Power

Why do cities heat up?

012

Answer

User Avatar
Wiki User
05/15/2008

I suppose you mean why are cities usually hotter than surrounding open country areas? This is due to several effects: buildings absorb more heat from the sun, buildings are usually heated inside, dense road traffic produces heat and in narrow streets this can't easily escape. In summer conditions many buildings have air conditioning. this keeps them cool inside but the heat rejected to the outside can only appear in the general atmosphere in the city.