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Lecture 7

Lecture Seven


Department
Geography
Course Code
GGRA03H3
Professor
Andre Sorensen
Lecture
7

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GGRA03
Lecture 7 – Megacities
Today:
- what are megacities
- why are megacities important
- large size as an urban variable
What is different in a megacity?
Megacities:
- unsustainability, u see higher risks of healthy decline, and other declines
- how is unsustainability being framed, and how can we learn from it?
Big Questions
- in what ways are megacities a new form of urban development?
- are there distinct characteristics?
- why is size a problem?
GIANT CITIES
- giant cities are not a problem (theory), New york city most efficient in north America, generate
less waste per capita
- large cities are often higher quality of life, attractive places to live, energy efficient, jobs created
- not necessarily problem for sustainability, is there an issue?
- dystopia thought, there comes a point where a city becomes unliveable, in giant cities people
dont know each other, increase in crime, sci fi sees giant cities as problematic in future
- there seems to be a distrust and fear of giant cities
WHY ARE MEGACITIES IMPORTANT?
- megacities about 9% of worlds population
- only 2 megacities, in 1950, Tokyo and newyork
- 1975, mexico
- by 2007 there were 19 including 15 in developing countries
WHAT ARE MEGACITIES
- has to be over 10 million population
- in the past, it was 4 million, the number was lowered to provide more sample cities
- difference between 1m to 10m:
- larger the city, higher land prices (more people competing for land)
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