Today we have break through technology to help manage our waste. Could you imagine having to deal with 50 tons of sewage per day - without any of the current leading technology - 700 years ago? Filthy Cities: Frustrated with Filth More Videos Online

Filthy Cities: Frustrated with Filth

Today we have break through technology to help manage our waste. Could you imagine having to deal with 50 tons of sewage per day - without any of the current leading technology - 700 years ago?

Added: Apr 12, 2011
Views: 1713 Views
Runtime: 02:31

 
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