This paper is focused on how agriculture – including the natural and cultural resources that sustain people in and around cities, and even in remote rural areas – provides important and reciprocal benefits to the sustainable development of both rural and urban communities (see definition of sustainable agriculture in glossary). The intended audiences are sustainable development actors at multiple local, national and international levels. Practitioners and policymakers active in the relatively new fields of urban and regional or territorial planning for sustainability and resilience are beginning to engage issues of food security, nutrition and sustainable agriculture.