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Tuesday 25 September 2012 at 19:28

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Edited by Steve Russell, Thursday 27 September 2012 at 20:41

Photo showing composted human manure for agriculture, It is hygienic, odourless and nutritious for plants (Photo Julia Littmann)

Composted human excreta. [online] <http://www.flickr.com/photos/23116228@N07/3382862360> [Accessed September 25, 2012].