GGRA03H3 Lecture 6: Urban Ecology Lecture 6
Document Summary
Urban ecology / urban political ecology lecture 6. Ecology of cities not ecology in cities people used to consider ecology just as places outside the city like agriculture. Cities function as ecosystems relation of people to their surroundings (e. g. environment) Closed loops e. g. the globe except for sun light. Open loops huge amount of water, energy sources, food and manufactured goods flow into the city and it is then transformed with wastes (sewage, garbage) that flow out. Cities are disruptors take high level of energy matter and use it up to produce low level degraded wastes that cannot be reused again as inputs of energy. Global wastes such as greenhouse gases are the results of cities" disruptions. Search of wastes sinks pattern of development of cities (instead of finding better ways of reducing waste people keep t rying to find more landfills for our wastes)
