Informal settlements in Greater Cairo house a large portion of the population, who face increasing social inequality and environmental vulnerabilities. Manshiet Nasser, a desert settlement east of Islamic Cairo, is one such area struggling with challenges like environmental hazards and limited infrastructure. The Zabbaleen community plays a vital role in Cairo’s waste management by recycling approximately 80% of the city’s waste, yet their contributions often go unrecognised. This research explores how urban design can achieve environmental justice for the Zabbaleen, focusing on creating a safe, healthy, and clean environment while positioning the community as drivers of change.

The study examines Manshiet Nasser’s connections to Cairo’s broader context, the daily routines of the Zabbaleen, and the perspectives of various stakeholders on the community’s living and working conditions. Findings reveal significant risks from environmental hazards, marginalisation, and conflicting priorities among stakeholders. A pattern language approach was used to design interventions that adapt the urban fabric, support community development, and optimise the recycling chain. These patterns connect findings from analysis and literature to participatory and context-based design strategies.

The proposed urban design addresses key challenges by cooling the urban environment, diversifying waste business opportunities, and reducing health hazards. Stakeholder involvement is essential for translating aspirations into interventions and negotiating conflicts. While achieving environmental justice requires physical upgrades and mindset changes, this research highlights the potential of informal communities to lead change. The project aims to inspire designers and policymakers to envision alternative development pathways for more equitable urban futures.

North-western European countries play an important role in the global food system, by providing 80 percent of the whole European production. The current production system is focused on profit, has a yearly emission of 1250 megatons of CO₂ equivalent in North-western Europe and produces pollutants in the soil, water, and air. This results in an imbalance between natural and human activities, which is destroying biodiversity, natural resources and is increasing food access inequality. Therefore, our goal is to reduce CO₂ emission to net-zero in 2050 and to reach food security for all people North-western citizens.
We aim to design a sustainable food production system that is based on three pillars: nature-based, community-based and production for need. We analysed the current system through fieldwork, data analyses and literature reviews.
The concept of the circular economy formed our basis for a vision of an open adaptive system for the food production system. It includes concepts of circularity from the production on the fields, towards the re-valuing and re-purposing of household and industrial by-products. For each of the production steps we have developed a toolbox of innovations, which are integrated following the local context. New ways of production are incorporated in the farming process; management techniques, which reduce CO₂, are implemented in the processing phase; new marketing strategies are applied in retail; in the consumption phase mindset is changed to accept alternative products and meal planning. In terms of disposal, waste is reduced by reusing it as an input for other processes. Lastly, carbon sequestration is improved by recovering and increasing natural areas, leading to an increase in biodiversity and soil health.
This toolbox is implemented as a strategy in the region of South Holland to illustrate the spatial, social, and economic impacts of the new food production system. The circular concept ensures an approachable transition from linear to circular food production systems in North-West Europe. Therefore, it can be used to inform international cooperations, national and regional governments in making policies, and to provide an overview of the spatial implications of this transition on the national, regional, and local scale. Overall, it is a radical shift towards renewable energy sources, incorporating by-products as inputs and using and producing food products with a smaller CO₂ footprint.