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GGRA03H3 (139)

lecture 5

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University of Toronto Scarborough
Susannah Bunce

L05 - contested ideas (varying between opinions and ideas) - cities are complicatedcomplex systems (lots of things happening at the same time) - spatial patterns of the urban society - computerstechnology (GIS) to analyze geographical patterns - policy: help maintaingovern the city on different levels - investment in rebuilding of our city as city system: inefficient in energy uses - rebuilding urban form to reconstruct - city = opportunity for change Sustainable Cities Ideas - over 50% of world population - ability to maintain sustainable life with lowshared uses - sustainable development = development that meets the needs of the present without compromising the ability of future generations to meet their own needs - development that improves the long-term health of human and ecological systems - inter-generational equity: inequitable for g3eneration to use up cheap resources - intra-generation equity: disparities in wealth increasing, poor countries are unable to use a lot of resources, but are more damaging - transfrontier responsibility: if developed world makesuses all of the resourcespollution, catch up - green infrastructure & buildings (e: 25-50%, c: 33-39%, w: 40%, s: 70%) urban sustainability issues [measures of ecological footprint] energy use - Bill Reese 1990s, how much land CO2 emissions area used to supply products used water consumption within daily life resourc
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