As prices soar, Japan returns to human waste fertiliser

About a decade ago, Japanese treatment facilities wondered if they could revive interest in avoiding sewage sludge disposal -- a costly and potentially environmentally damaging process.

lettuces at a farm in Yokosuka city of Kanagawa prefecture. - It's cheap, recycled, and has centuries of tradition: "shimogoe" or "fertiliser from a person's bottom" is finding new favour in Japan as