Urbanization and Urban Growth
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Urbs Latin for city the built form.
Urbanization the increase in the proportion of
the population living in cities.
Civis Latin fo
About half of the worlds population lives in cities today. Every week
the number of people living in cities in Africa and Asia increases by
about one million.
Mumbai with Dharavi (largest slum in Asia) in foreground.
About 90% of world population growth i
The Urban World
11.30am to 12.50pm
And online (hybrid)
Review from The Economist
First month of clas
Greek empire around 600 BC
Greeks controlled much of coastal Mediterranean by 600 BC
Unlike previous urban civilizations, Greek empire not built on
agriculture. Aegean peninsula mountainous, thin soils.
But good harbors and reasonably fertile sea.
Africa is the least
In 2003 only 33% lived
in urban areas.
But Africa has the highest
rate of increase in
In 1950 only two African
cities had over 1 million
Today there are 40 cities
over 1 million pop.
Two Faces of Chennai
In last 50 years Indias pop. ha
grown 2 times while urban
India has grown 5 times.
In 2008 urban population was
400 million 30% of total pop.
Cities are 1/3 of population
but 2/3 of Indias GDP and
90% of govt. revenue.
India has 170 m
Urban Latin America
In 1950 the population of North America and Latin America were
approximately equal. Today, Latin America is half as large again as
North America with about 520 million vs. 310 million. Latin America
is expected to continue growing.