History Community wastes were used in ancient Egypt to feed urban farming.

Wastewater and organic solid waste can be transformed into resources for growing agriculture products the former can be used for irrigation, the latter as fertilizer.

For tables 5(KP I), components are the aggregate totals for each carbon stock change column for the activity gains and losses should be considered separate components, where applicable For tables 5(KP II), components are the aggregate emissions for the activity from nitrogen (N) fertilization, drainage of soils, disturbance associated with land use conversion, lime application or biomass burning.