Sentences with phrase «where human excrement»
Most of those afflicted live in developing countries, where there is not enough clean drinking water or effective sanitation systems to keep infected feces from contaminating food and water, and where human excrement is used to fertilize crops.
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Most of those afflicted live in developing countries, where there is not enough clean drinking water or effective sanitation systems to keep infected feces from contaminating food and water, and where human excrement is used to fertilize crops.
Not exact matches
On the other hand, Ann Olga Koloski - Ostrow, the self - professed «Queen of Latrines» and a classical archaeologist at Brandeis University in Waltham, Massachusetts, who was not involved in the study, points out that it's difficult to know exactly how prevalent the use of human feces as fertilizer actually was during the Roman Empire: «We can just say that in some early farming texts, we know that they'd build the slave toilets over an area where the excrement could be collected and then spread over the crops, but that was just on isolated farms here and there.»