Peak phosphorus: our most important nutrient running out Ewan Kingston | 12th January 2010 It has no synthetic alternative and some scientists believe supplies may already be in a terminal decline. But there is still no international effort to tackle the massive agricultural problems that will come when the phosphorus runs out The power of wee: urine could be green energy The Ecologist | 16th September 2009 Urine could be used to generate electricity and as a free alternative to mineral fertilisers
The power of wee: urine could be green energy The Ecologist | 16th September 2009 Urine could be used to generate electricity and as a free alternative to mineral fertilisers
