Global urbanization and food production are in direct competition for land. This paper carries out a critical review of how displacing crop production from urban and peri-urban land to other areas – because of issues related to soil quality – will demand a substantially larger proportion of the Earth’s terrestrial land surface than the surface area lost to urban encroachment. Such relationships may trigger further distancing effects and unfair social-ecological teleconnections. It risks also setting in motion amplifying effects within the Earth System. In combination, such multiple stressors set the scene for food riots in cities of the Global South. Our review identifies viable leverage points on which to act in order to navigate urban expansion away from fertile croplands. We first elaborate on the political complexities in declaring urban and peri-urban lands with fertile soils as one global commons. We find that the combination of an advisory global policy aligned with regional policies enabling robust common properties rights for bottom-up actors and movements in urban and peri-urban agriculture (UPA) as multi-level leverage places to intervene. To substantiate the ability of aligning global advisory policy with regional planning, we review both past and contemporary examples where empowering local social-ecological UPA practices and circular economies have had a stimulating effect on urban resilience and helped preserve, restore, and maintain urban lands with healthy soils.

Wastescapes are the result of unsustainable linear growth processes and their spatial consequences within the context of urban metabolic flows and related infrastructure. They represent the operational infrastructure for waste management and include Drosscapes, generating complex relations with the servicing and surrounding territory. In particular, the peri-urban areas are spatially affected by these processes. This often leads to ineffective use and/or abandonment because they are currently impossible to use, demanding impactful (and often expensive) regeneration and revalorization to make them usable again. Being part of the urban metabolic process, wastescapes are in a continuous state of dynamic equilibrium. They can be considered crucial areas from a metropolitan perspective because they have the potential to become innovative spatial contexts or resources in a Circular Economy (CE), which aims to overcome the crises of both resource scarcity and spatial fragmentation. However, common and shared definitions of wastescapes are still missing at the European policy level, as only classical categories of material waste are generally mentioned. Wastescapes can be considered as ‘potentiality contexts’ where developing, testing, and implementing Eco-Innovative Solutions (EIS) can be done. By doing so, wastescapes can help start transitions towards a CE. This can be achieved by using Peri-urban Living Labs (PULL), which have the potential to be the virtual and physical environments in which experimenting the collaborative co-creation process for developing EIS can be done. Doing so will allow for the improvement of waste management and for the revalorization of wastescapes in collaboration with all potential stakeholders.

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Since the 1970s, a variety of studies has searched for the sociodemographic, housing and economic determinants of energy poverty. A central question, however, has not been answered by any of the previous studies: what are the national-level determinants, i.e. the determinants that homogeneously provoke a high level of energy poverty in all areas of a country? What are the neighbourhood-specific determinants, i.e. the characteristics that have a heterogeneous impact across the neighbourhoods of a country? This study seeks to answer these questions by analysing the level of energy poverty, the percentage of households' disposable income spent on energy expenditure, in 2473 neighbourhoods of the Netherlands in 2014. By employing a semiparametric geographically weighted regression analysis, the effects of two of the determinants of energy poverty are found to be spatially homogeneous: (i) percentage of low-income households and (ii) percentage of pensioners. The results indicate that the impacts of six of the determinants are spatially heterogeneous: (i) household size, (ii) percentage of unemployment, (iii) building age, (iv) percentage of privately rented dwellings, (v) number of summer days and (vi) number of frost days. Subsequently, the effects of spatially homogeneous and heterogeneous determinants are estimated and mapped; the results are discussed and some policy implications are proposed.