Project Recycles Human Urine as Fertilizer

Fertilizer is made of nutrients like nitrogen and phosphorus. Chemical fertilizers require huge amounts of energy to produce. But there are other, natural and more readily available sources. A project at the University of Michigan is aimed at making our water cleaner and our agriculture more sustainable by capturing one of those sources … rather than flushing it down the toilet. Faith Lapidus explains.

© La Voix de l'Amérique - dimanche 16 décembre 2018