Uploaded on 2016-06-25 by Shervin haddad

As mentioned in this module of the course, we have a lot of stocks and flows in cities such as people, information, water, food, land, density and so on. In my mind, I assume all kind of energy as stocks and flows too. Especially I emphasize on sustainable energy like solar, nuclear and …. For example the solar energy can be considered as a flow when it shines on the earth and when we gathered it with solar panel it can be a stock. the picture is taken from internet.