Integral Land Reclamation and Climate Transition: A Mesological Perspective on the ‘Macchina della Terra’. – This contribution examines integral reclamation in the Gulf of Oristano, Sardinia, employing Berque's concepts of ecumene and mesology alongside geographical insights. Lucio Gambi’s metaphor of reclamation as a “macchina della terra” serves as a foundational idea, while Federica Cavallo highlights modern territorial constructs that emerge from contrasts such as water vs. earth and modern vs. wild. On the centenary of the Santa Chiara dam’s inauguration, which transformed Oristano’s coastal wetlands, the region now faces the challenges of climate change. The interplay between land and local communities reveals both contradictions and potential alliances in ecological resilience, particularly in discussions surrounding Nitrate Vulnerable Zones. A century of human-environment interactions has reshaped these areas into vital agro-food production hubs, underscoring the need for a mesological perspective on this evolution.

The memory of water. Hydrosocial fragility and urbanisation in Cagliari. – In Italy, the modern abstraction of human beings from the environment has led to a strict technicist management of natural resources and to a clear separation between urban and social policies, not entirely overcome by the National Recovery and Resilience Plan (PNRR). In particular, urban strategies struggle to reason about the role of water in the territorial system, relegating it to technical risk management interventions. From the debate around the mesological approach, various declinations of the relationship between human presence and water outline an often-chaotic palimpsest of plans and visions of urban space.
The contribution addresses the case study of the Cagliari municipality of Pirri, in the relationship between the historical condition of hydrogeological and social fragility and the new urban strategies to contrast risk. This systemisation is possible by adopting a reading of Pirri as a hydro-social territory, which allows us to critically reconstruct the history of the hydro-social fragility of this territory and consequently to re-read past and future planning policies.