On 23 February at 14:00 CET, the first River Cities Lunch Session convened an interdisciplinary exchange on the structural role of ecosystem services in shaping climate-resilient and regenerative urban futures. Under the title “Reconnecting People, Place, and Nature Through Urban Ecosystem Services”, the seminar featured Eva Stache (TU Delft) and Lia Ghilardi as keynote speakers and respondents within the River Cities LAN framework. Bringing together architectural research and cultural urbanism, the session examined how ecological processes can be repositioned from peripheral amenities to core urban infrastructures.
Nature as the Engine of the City
At the conceptual center of the session was a deliberate inversion of conventional urban thinking: nature is not external to the city but constitutes its operative engine. Ecosystem services—such as temperature regulation, water retention, air purification, and carbon sequestration—were framed as foundational life-support systems that make urban environments livable, healthy, and resilient under climate stress.
This reframing moves beyond decorative greening strategies toward a systemic understanding of urban metabolism. Rather than treating green space as only recreational or esthetic, the discussion positioned ecological processes as performative infrastructures embedded within the built environment, services provided by the city to its inhabitants.
Green as a Building Material: Eva Stache’s Technical Perspective
The technical foundation of the seminar was provided by Eva Stache, architect and researcher at Delft University of Technology, CiTG. Drawing on her research on “Green as a Building Material,” she articulated a design paradigm in which vegetation is understood as an active climatic and spatial agent.
Her analysis focused on four critical ecosystem services:
Urban Cooling.
Vegetation mitigates the urban heat island effect through evapotranspiration and shading. Cooling was presented as both a climate adaptation strategy and a public health imperative, particularly in the context of intensifying heatwaves.
CO₂ Capture.
Carbon sequestration was discussed as a spatially distributed design challenge. Wood in all possible forms- ranging from façade vegetation to buildings and urban trees—contribute to atmospheric carbon reduction while enhancing biodiversity and urban spatial quality.
Health.
Beyond environmental metrics, ecosystem services were linked to psychosocial well-being. Access to vegetated environments correlates with reduced stress levels, improved mental health outcomes, and strengthened social interaction. Health thus emerges as a co-produced outcome of ecological and spatial design.
Beavers as Ecological Engineers.
The inclusion of beavers introduced a compelling model of non-human design intelligence. Through dam construction and wetland formation, beavers transform hydrological systems, enhance biodiversity, and stabilize landscapes. Their activities exemplify adaptive, process-based environmental engineering—offering an instructive analogy for regenerative urban design practices.
Stache’s contribution underscored that climate-adaptive architecture must internalize ecological processes as material and operational components of urban construction.
Cultural Sustainability and the Social Fabric: Lia Ghilardi’s Response
Following the technical presentation, Lia Ghilardi—urban sociologist and regenerative placemaking expert—expanded the discussion into the socio-cultural domain. She emphasized that ecosystem services achieve transformative impact only when embedded within the cultural DNA of communities.
Ecological interventions, she argued, require cultural legitimacy, participatory governance, and narrative integration. Regenerative urbanism is not solely a question of biophysical optimization but of meaning-making, identity formation, and collective stewardship. By exploring how natural services can be woven into the social fabric of cities, Ghilardi reframed sustainability as an inherently cultural project.
In particular, she emphasised the importance for each city to fund a strong cultural infrastructure per se’ as as a base for enabling communities to develop fully as individuals first and foremost, and by extension become more capable to participate in civic decision making (for example regarding the measures that could be implemented to combat climate change in their cities) among other things.
Her perspective foregrounded the necessity of cross-sector collaboration among architects, civic leaders, developers, and cultural actors. Only through such integrative approaches can scientific evidence be translated into durable community action.
Bridging Evidence and Action
A central theme of the session was the persistent gap between scientific knowledge and implementation. While the empirical and scientifically validated evidence supporting ecosystem services is robust, their integration into mainstream urban development remains uneven. The seminar therefore positioned dialogue and knowledge exchange as critical instruments for bridging this divide.
The interactive format—combining technical analysis, cultural reflection, and live exchange—mirrored the session’s normative ambition: to catalyze regenerative urban spaces through the convergence of research, design innovation, and civic engagement.
Toward Regenerative Urban Systems
The seminar articulated a coherent and multi-scalar vision for urban transformation:
By interweaving climate-adaptive design with cultural strategy, the session demonstrated that reconnecting people, place, and nature is not a rhetorical aspiration but a materially grounded and socially mediated pathway toward resilient urban futures.
You can watch the Webinar here:
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