GGRA03H3 Lecture : You're welcome
Document Summary
Huge inputs and outputs, structured by metabolic processes of production, delivery, consumption. Input & output can be measured and where necessary can be influenced by public policy. critical to understand nature of inputs and outputs. cutting down outputs, such as recycling, is important. ensuring quality water supply is important to health. successful 19th to 20th century water treatment policies, public water supply. primary waste treatment, secondary , and tertiary treatment systems were installed to prevent people from down the stream of the big cities getting sick. arise from the way we built our sewage system. combined sanitary and storm water sewer systems used on pipes in cities, which in reality needs to be treated in different ways. works in dry weather, but heavy rain overloaded the systems, and water was released into lake, river. The reason is because it caused too much to build two sewage systems.
