Urban Agriculture and Food Security Solutions
Summary
Urban agriculture encompasses a range of practices—from community gardens and rooftop greenhouses to vertical farms and indoor hydroponic systems—that integrate food production into densely populated areas. By converting underused urban spaces into productive landscapes, these approaches can enhance local food availability, reduce transport emissions and strengthen community resilience. Key advantages include efficient land use, improved resource cycles through symbiotic exchanges of water, heat and nutrients with the built environment, and the delivery of multiple ecosystem services such as pollination, stormwater regulation and urban cooling. Urban agriculture also offers social benefits: fostering education, promoting dietary diversity and supporting livelihoods, particularly in underserved neighbourhoods. However, challenges remain in balancing energy and water demands, navigating regulatory frameworks, securing adequate investment and ensuring equitable access. Achieving meaningful contributions to food security requires tailored design of systems, integration with urban planning, and policy measures that incentivise multifunctionality. As cities pursue higher degrees of self-sufficiency, holistic assessments of environmental, economic and social impacts are essential to realise the full potential of urban food systems.
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Urban Agriculture and Food Security Solutions publication trend
The graph below shows the total number of articles in urban agriculture and food security solutions across all publications each year (not limited to Nature Index journals).
Technical terms
Rooftop greenhouse: A glass- or plastic-enclosed cultivation system installed on a building roof that harnesses symbiotic heat, water and carbon dioxide exchanges for year-round food production.
Vertical farming: A controlled-environment agriculture method that grows crops in vertically stacked layers, using artificial lighting and precise climate and nutrient control to maximise yield per square metre.
Urban food self-sufficiency: The proportion of a city’s food demand that can be met by production within its own boundaries, expressed as a percentage of total consumption.
Ecosystem services: The benefits that humans derive from ecological processes—such as pollination, water filtration, climate regulation and soil fertility—provided by natural or semi-natural systems.
References
- Urban farming with rooftop greenhouses: A systematic literature review. Renewable and Sustainable Energy Reviews (2023).
- Vertical farming: a toolbox for securing vegetable yield for the food of the future. Frontiers in Science (2024).
- Potential for urban agriculture: Expert insights on sustainable development goals and future challenges. Sustainable Production and Consumption (2025).
- The Role of Urban Agriculture as a Nature-Based Solution: A Review for Developing a Systemic Assessment Framework. Sustainability (2018).
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