Picture of the day: Urbanisation
![hongkong](http://farm3.static.flickr.com/2139/2499972596_9a599b84fb_o.jpg)
The proportion of people living in towns, rose dramatically from 13% (220 million) in 1900, to 29% (732 million) in 1950, to 49% (3.2 billion) in 2005. By 2050 over 6 billion people, two thirds of humanity, will be living in towns and cities.
More "Pictures of the Day" on the Road.
Picture courtesy chickencrap.com
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