Human excreta may help secure future food security

LONDON (Reuters) - Human excreta could have a key role in securing future food security, helping prevent a sharp drop in yields of crops such as wheat due to a shortage of phosphorus inputs, a UK organic body said on Monday.

"It is estimated that only 10 percent of the three million tonnes of phosphorus excreted by the global human population each year are returned to agricultural soils," Britain's largest organic certification body, the Soil Association, said.