The security of water, food, energy and liveability of cities: challenges and opportunities for peri-urban futures

agriculture biodiversity carbon cycle case studies catchment areas climate change decentralization emission reduction energy conservation excreta food production food security food supply greenhouse gases health hazards horticulture hydrological cycle knowledge management labour mobility land use malnutrition milk production models nutrients periurban areas rural areas sanitation social aspects solar energy sustainable development urban areas urbanization waste treatment wastewater treatment water availability water demand water footprint water security water supply water use