Marion Waller studied the environmental philosophy and urbanism at Sciences Po and the École Normale Supérieure.
In 2016, she published Artefacts naturels (Natural Artifacts). The purpose of this book is to give a frame to entities – “objects” – that are intentionally created by men but which can be related to natural processes and are likely to to acquire autonomy as a natural object. This notion of natural artifact allows us to rethink the practice of urban planning, reducing the opposition between city and nature.
Marion Waller is also advisor to Jean-Louis Missika, Deputy Mayor of Paris, in charge of urban planning, innovation and attractiveness issues.
explore
A philosopher and senior lecturer at the National School of Architecture of Marseille, Matthieu Duperrex explores ‘sentinel landscapes’—polluted soils, engineered rivers, industrial port zones—from a decolonial, multidisciplinary perspective attentive to the various ways of narrating the damaged world we have inherited. He regards these sites both as places of warning and as spaces of knowledge.
Over the span of several months, students from GOBELINS Paris scouted La Défense, examining the iconic business district from the fresh perspective of urban metabolism. As part of a documentary workshop led by Pierre-Jérôme Jehel and Laetitia Guillemin (GOBELINS) and designed in partnership with researchers from the City-Metabolism Chair at PSL University, some thirty students explored this territory. They did so by treating it not as a mere backdrop but as a living organism, traversed by flows, tensions, and rhythms, using photography as a tool for revelation. Their projects, located at the crossroads of artistic creation and research, unveil an alternative reading of this mineral space, between invisible flows and underlying tensions. Both sensitive and rigorous, this inquiry is chronicled here by Corinne Feïss Jehel (EPHE-PSL), Pierre-Jérôme Jehel, and Émilie d’Orgeix (EPHE-PSL) as part of a research project conducted by the City-Metabolism Chair (which is financially supported by PCA-STREAM, Artelia, and Groupama Immobilier).
For Daniel Buren, architecture is an open-air studio. In an exclusive interview with architect Philippe Chiambaretta, he talks about his site-specific work, where art and architecture meet, just like the Nuages Colorés that cover the scales of the 175 Haussmann glass roof.
Andrew Freear runs the Rural Studio program at Auburn School of Architecture (USA). He believes that schools of architecture have an ethical responsibility to train citizen architects who are locally committed to concrete projects and experientially connected to contexts and places. To design an inclusive city, the Studio adopts an experimental field approach, combining analysis of the territory’s endemic problems, understanding of residents’ needs and new construction techniques. Read the full interview published in STREAM 05!
In this exclusive interview, Björn Geldhof, director of the PinchuckArtCentre in Kyiv, looks at the evolution of the centre’s cultural programming since the outbreak of war in Ukraine. From an institutional space whose primary role was to open up the country to the world, the centre has evolved into a platform for committed and activist research, carrying the voice of Ukraine throughout Europe. By using art to document the conflict, the PinchukArtCentre uses a factual approach to raise awareness in the spheres of opinion and decision-making, thus affirming its role as the country’s ‘artistic arm’.
In urban planning and geography, the concept of metabolism is frequently discussed. This organicist metaphor likens a territory to a body, traversed by flows of materials and energy that link it to its environment. From a quantitative perspective, these flows can be measured over time and space to assess what a territory consumes, processes, and produces. However, a qualitative approach is equally crucial, examining the political and social trade-offs that shape urban metabolisms. With this in mind, we spoke with two researchers, Clément Dillenseger and Pierre Desvaux, who have explored the waste sector to analyze the socio-technical infrastructures that underpin metabolism and the imaginaries that shape its perception.
On the occasion of its integration into the Paris Sciences et Lettres (PSL) university consortium, the École nationale supérieure d’architecture de Paris-Malaquais is publishing a manifesto that asserts its institutional positioning. Far more than a mere text, this manifesto lays the foundations for a committed academic vision, emphasizing the urgent need to train architects engaged in transforming the ways we inhabit the world. Structured around twelve key concepts, it is intended as a compass to guide the school’s pedagogical and strategic choices, in alignment with the 2025–2029 National Strategy for Architecture. In this interview, its director, Jean-Baptiste de Froment, reflects on the values driving this project and on how the school positions itself as a proactive agent of thought and action within the contemporary architectural landscape.