Sunday 23 October 2016

HOW a SEWAGE SYSTEM SAVED a RIVER FROM BECOMING A DEAD ZONE


Imagine a city that contaminated his main river to the point of biological extinction.Well, you don´t have to imagine it,beacuse that was London and the river Tames in 1858 in an event called "THE GREAT STINK":Colera outbreaks popped all over England,poop piles up to 6 feet deep.Finally the goverment decided to put a sewage system that cleaned the river from waste,it took 20 years to complete,a hundred years later the Tames was declared as dead, in 1957 the natural history museum declared the Tames as biologically dead.
But better sewage systems appeared and now the Tames supports wildlife in its waters.

THE END
  
If you want to know more watch this video by Vsauce2 about our toilets and water theatments. 

1 comment:

  1. You can always make things better. Are we still on  time?

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