There is one source of fertilizer that seems virtually recession proof and protective against soaring prices as well-and that is the fertilizer in human urine. Environment and Public Health Organization (ENPHO) has for several years been promoting ecosan toilets which collect urine and faeces seprately. Efforts are underway to crystallise the urine into a solid form so that it can be stored and used more easily - and the village of Siddhipur in Nepal is in the forefront of research.