Cities and urban systems are the places most responsible for climate change, but at the same time they are the places where its effects are felt the most. A state-of-the-art analysis showed that Ecological–Environmental, Settlement, and Infrastructure and Service Systems are the components of cities most exposed to risk phenomena. Therefore, it is important to identify site-specific actions aimed at enhancing ecosystem services and building hierarchical ecological networks (green and blue infrastructures), according to an Ecosystem-based Approach (EbA). In this regard, the contribution presents the results of a research work on the theme of multi-risks connected to climate change, referring to heavy rains and river flood phenomena and sea level rise and proposes a systematisation of international best practices in the field of the Ecosystem-based Approach (EbA). Each best practice analysed is traced back to the three urban resilience macro-strategies of “defence”, “adaptation”, and “relocation/de-anthropisation”, already conceptualised by the authors during their joint research activity. The aim is to outline a synthetic toolkit of site-specific design actions, exportable to other contexts, intended as a tool to support the innovation of urban planning tools at the local level.

In recent years, the territorial impacts connected to sea level rise have prompted a reflection on the responsibilities of policy makers in transposing these issues into urban agendas. The need also emerged to both broaden and update the skills of urban planners and to improve territorial governance tools, with the aim of developing feasible regeneration and resilience strategies to face climate change. In this paper, a methodology for the production of Flood Risk Maps is presented, as applied to the Municipality of Ravenna, Italy, by only considering the static component of inundation hazard, i.e., the projected Mean Sea Level Rise, as a first step towards increased preparedness. The resulting Flood Risk Maps represent, in fact, an innovation with respect to the current cognitive framework that supports local urban planning, by providing information on a potential risk that has so far been overlooked. The method combines sea level rise projections under the pessimistic RCP8.5 scenario with georeferenced territorial data, aiming to identify the physical consistency of the urban-structure components which are potentially at risk. For successive time horizons (2030, 2050 and 2100), our results show the progressive impairment and potential degradation of extensive urban areas that are disregarded in the urban planning regulations currently in force. This preliminary evaluation phase is aimed at prompting and supporting the necessary updating of the planning tools and regulations adopted by the public bodies responsible for territorial governance, by identifying priority areas for intervention, and helping define mitigation and adaptation actions.

The increasing concentration of people and economic activities in urban areas intensifies the pressure on the urban environment and hastens environmental degradation processes. Therefore, addressing the impact of climate change on cities is an urgent matter that demands the immediate attention of policymakers, researchers, and the general public, not only for its environmental but also socioeconomic ramifications. Within this framework, the research focuses on the effects of climate change on coastal cities and aims to define guidelines for the innovation of urban planning tools from a climate-proof perspective. Specifically, the study analyses the effects of two phenomena related to climate change: heavy rainfall, river overflow, and sea-level rise, to establish a replicable approach for updating the documents that constitute the cognitive framework of the Local Urban Plan through the preparation of a multi-risk map (that considers different time horizons) and consequently the prescriptive apparatus of the Plan through the definition of a toolkit of site-specific design actions oriented towards urban adaptation. The proposed methodology is tested on the case study of Isola Sacra, Fiumicino (Italy), and is intended to apply to other territorial contexts. The aim of this study, in accordance with the principles of the Disaster Risk Reduction (DRR) framework, is to furnish theoretical-methodological and operational guidelines to translate risk knowledge, despite its limitations due to variables and uncertainties in measurements, into effective urban adaptation measures.

From the perspective of the scientific-disciplinary debate within urban planning, this research addresses the theme of the “new urban question” resulting from environmental concerns related to the climate crisis and socioeconomic issues that have now become structural. It then delves into the connection between urban environment quality and quality of life, ultimately questioning the role that territorial governance tools play in positively influencing the perception of well-being in cities. The overall objective of this contribution is to define an interpretative framework for experimental approaches in territorial governance. This overarching objective is articulated in the definition of two specific outcomes, pursued through an inductive methodology. The first one involves establishing an initial set of urban welfare indicators; the second entails defining strategies for planning, designing, and regenerating the public components of the city that could influence the indicators. Both outcomes are designed to be exportable to different territorial contexts.

Within the ongoing scientific and disciplinary debate on the interplay between climate change and land-use governance, this paper highlights the critical role of urban planning and design in shaping environmental regeneration strategies for coastal urban areas vulnerable to flooding phenomena. These flood events—driven by the combined effects of sea-level rise (SLR) and riverine flood—represent one of the key challenges facing the “global risk society” given their increasing impact on urban areas and the tangible economic, social, and environmental damages they produce. In this context, this paper presents selected outcomes from the findings of the research project “Climate-proof planning and regeneration strategies for adaptation to sea-level rise. Experimentation and innovation in local urban planning in at-risk areas of the Lazio region”, conducted at Sapienza University of Rome. The project focuses on research and experimental planning in coastal areas of Lazio identified as being at risk of SLR-related flooding by 2100. It aims to define theoretical–methodological and operational references for urban regeneration with an ecosystemic approach within the framework of so-called climate-proof planning. This study examines three macro-areas, further subdivided into seven distinct sites, categorized by their prevailing urban functions. For each site, following a preliminary assessment of flood-prone zones, tailored design actions are proposed. These actions are framed within three overarching of urban resilience strategies, developed in previous research by the authors: “defence”, “adaptation”, and “relocation”.

According to the Global Report on Internal Displacement (GRID, 2022), the number of displaced people worldwide at the end of 2021 was 59.1 million, with 53.2 million of them being the result of conflicts and violence, and 5.9 million caused by climate-related disasters. Furthermore, the In-ternational Organization for Migration (IOM) predicts that the climate crisis will be solely re-sponsible for one billion migrants by 2050. In this context, the research examines the issue of coastal multi-risk arising from a combination of heavy rainfall, river's overflow, and sea-level rise phenomena, analysing it through the disciplinary perspective of urban planning. Specifically, the study focuses on the need to upgrade the Local Urban Plan from a climate-proof perspective by defining a method aimed at updating the territory's cognitive framework through the preparation of a multi-risk map (which considers different time horizons), as well as the prescriptive apparatus of the Plan through the definition of a toolkit of site-specific design actions oriented towards urban adaptation. The proposed methodology is verified on the case study of Isola Sacra, Fiumicino (Italy), and it is intended to be applicable to other territorial contexts. The research aims to outline guidelines for updating urban planning tools from a climate-proof perspective to promote long-term resilient urban development in risk-prone areas.