THE EUROPEAN CITY DOES NOT HAVE ONE NATURE: THERMAL FIELDS, ECOLOGICAL SCALES, HEALTH EFFECTS AND PLANNING DEVICES IN MADRID, ROME, PARIS, BERLIN, LONDON AND OSLO · LAPIEZA LAB · ANTO LLOVERAS · SOCIOPLASTICS · 2026

European metropolitan nature becomes legible only when the category “green space” is broken into the spatial, ecological, social and institutional relations that make environmental capacity operative. The ten studies assembled across Madrid, Rome, Paris, Berlin, London and Oslo do not converge on a universal green metric; they progressively dismantle one. Madrid first shows that landscape performance exceeds cadastral boundaries. Aram and colleagues measure the cooling influence of a 125-hectare urban park through mobile observations and perceived thermal comfort, demonstrating that distance from the park is associated with changes in air temperature, physiological equivalent temperature and bodily perception. The park is therefore a thermal field rather than an isolated polygon. 

Theory from Irreducible Cities: African Urban Epistemology, Comparison and Situated Knowledge (Watson, Pieterse, Robinson, Anderson, Okyere, Simwanda, Odendaal) · LAPIEZA LAB · Anto Lloveras · Socioplastics · 2026

A city becomes theoretically consequential when it is permitted to contradict the concepts through which it is first observed. The enduring asymmetry of urban studies has not been simply that African cities were underrepresented, but that they were frequently positioned as empirical deviations from theories generated elsewhere: sites of informality, infrastructural deficit, incomplete modernity or delayed development whose explanatory grammar arrived in advance. Vanessa Watson’s “clash of rationalities” makes the epistemic structure of this problem visible. Planning systems built from techno-managerial, marketised and often inherited institutional forms encounter populations whose livelihoods, spatial practices and survival strategies operate through different rationalities; the resulting conflict cannot be understood as a temporary failure to implement an otherwise universal planning model.