Living labs have emerged as a long-term, collaborative approach to addressing complex societal challenges, such as sustainable land and water management and climate change adaption. While these transdisciplinary environments foster continuous knowledge exchange and interactions among actors from diverse disciplines and sectors, the role of learning in realizing the impacts of living labs on participating actors and broader society is often underexplored. This paper aims to identify and analyze learning that occurs within a sequence of co-creative activities and their resulting outcomes, using the concept of ‘learning pathways’. The ‘living lab learning framework’ provides a systematic approach to organizing and categorizing living lab activities, enabling to infer learning pathways. An ex-post analysis of an empirical case study on a climate adaptation project, KLIMAP, resulted in seven distinct learning pathways: 1) harnessing collective integrated knowledge, 2) building collaborative networks, 3) enhancing stakeholder capacity, 4) adapting and contextualizing knowledge, 5) diffusing knowledge, 6) facilitating co-creation, and 7) reflecting on learning. These pathways were developed by examining the types of learning activities, their processes, and the entities involved, linking them to the outcomes achieved. The findings highlight that learning pathways contribute to identifying outcomes and broader impacts of living labs.

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Problems manifested within social-ecological systems (SES) exhibit dynamic complexity and hold implications for current and future human well-being and environmental sustainability. The complexity of these issues, the ever-present uncertainty inherent to SES, and the multi-stakeholder settings in which they are discussed call for participatory modelling to support decision-making on socio-environmental issues. Yet, this challenging endeavour requires a structured approach — a modelling cycle — to facilitate engagement with the implications of participation and uncertainty as focal points for Good Modelling Practice (GMP). Here we propose an integrated policy analysis framework for SES modelling using System Dynamics (SD). This framework stems from integrating two existing modelling cycles that individually consider participation and uncertainty in SD modelling. Three global modelling phases and a set of tools to address the participation and uncertainty features in SES modelling are distinguished. The framework contributes to mainstreaming GMP, offering a structured model-based approach to enhance the robustness and social acceptance of policies on critical socio-environmental issues.

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The International Union for Conservation of Nature (IUCN) published their Global Standard for Nature-based Solutions (NbS) in an effort to further a common understanding and successful application of NbS. Our objective is to analyse the applicability of and considerations and advancements in using the IUCN Standard, as very few studies have examined and reflected on its actual application. As method, we applied the IUCN Standard to three case studies of river restoration projects with a focus on flood risk mitigation: (1) Eddleston Water Project, (2) “Room for the River” Deventer Project, and (3) Missouri River Levee Setback Project. Rather than evaluating the case studies itself, we evaluated the outcome to find the strong and weak points of the IUCN Standard. The gathered data (publicly accessible documents, conducted interviews with experts and stakeholders) was analysed and showed the role of the number of documents and interviews available. This determined the outcome of the IUCN assessment. The consultation of project experts has appeared to be an essential step in the data collection, while stakeholder interviews and field visits were less important, but did increase the degree of substantiation and the ease of data collection, respectively. Although restricted by a limited evaluation of flood risk mitigation studies, using the IUCN Standard for an ex-post assessment can provide credibility to project processes (e.g. stakeholder engagement and adaptive management), reveal project strengths and weaknesses, and provide opportunities for the comparison of projects. Hence, the IUCN Standard aptly evaluates process-based aspects of Nature-based Solutions for riverine flood risk mitigation.@en

A financing gap is seen as a crucial barrier, hampering the further uptake and upscaling of Nature-based Solutions (NbS). However, it is not always clear what is meant by this, nor is it clear why this barrier exists and persists. The aim of this paper is to generate an enhanced understanding of financial barriers to NbS. This is accomplished through first conceptually and theoretically clarifying the difference between funding and financing and then exploring these through an integrative literature review. We expose three different dimensions of financial barriers in NbS projects, namely the occurrence of multiple types of funding gaps, the occurrence of multiple types of financing gaps, and the particular and complex cost structures of NbS. NbS funding gaps can be broken down into public funding gaps, private funding gaps, and funding gaps specific for lifecycle phases, activities, and cost types. Bridging the funding gap is a necessary (although not sufficient) condition for bridging the finance gap and financing alone cannot solve a funding problem. We further find that these different dimensions of financial barriers can be explained by the misalignment between the characteristics of NbS and the characteristics of our existing institutions. These misalignments occur through different institutional mechanism, including (i) Funders’ preferences, (ii) Revenue generation enablers, (iii) Justification requirements, (iv) Funders’ regimes, (v) Financiers’ preferences and (vi) Finance application processes. All mechanisms influence the occurrence of public and private funding and financing gaps and they influence the cost structure of NbS, in particular transaction costs. The results of this analysis suggest that overcoming NbS funding and financing challenges requires a systemic, multi-level approach as the barriers to project implementation are not all located within a project's sphere of influence or control.@en

Nature-based living labs combine the elements of nature-based solution design with a living lab context to address social and environmental resilience challenges. There is a need to deepen insights on the characteristics of the emergent phenomenon of nature-based living labs, with respect to their predecessors. Accordingly, the paper first develops an outline of how living labs evolved into nature-based living labs, informed by bibliometric analysis. Second, the unique characteristics of nature-based living labs are identified using a systematic literature review. Finally, the core characteristics of living labs are determined, and nature-based living labs are placed within this context. Initial living labs had a strong technological focus, which proliferated into diverse application domains and regions after the European Network of Living Labs was established and expanded. Urban living labs emerged as a significant multidisciplinary and geographically specific domain, while nature-based living labs are inherently sustainability-oriented and consider ecosystem processes, interactions, and natural materials. Next, the paper identifies nine characteristics of nature-based living labs, five of which are always present, namely: (i) real-life spatial context and multi-scale, (ii) innovation and learning, (iii) user-centric, (iv) multi-actor involvement and (v) sustainability-oriented multiple benefits. Then, the four core characteristics of living labs, the variation within these characteristics, and how these align with the characteristics of nature-based living labs are clarified. Finally, the need for research on living labs across application domains and regions is highlighted, so that the global applicability of these local, user-centric, innovative approaches can be established.

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Ports are increasingly ‘greening’ operations to protect their ‘license to operate’ by integrating social-environmental considerations into their management and reporting on their sustainability performance. In this research, we develop a novel method for port sustainability performance (PSP) assessment that combines science-based knowledge with place-based contextualisation. Specifically, we address a recognised challenge of combining global (‘top-down’) techno-scientifically oriented indicators with place-based locally relatable (‘bottom-up’) contexts in sustainability performance, in addition to addressing limitations encountered in empirical verification. First, a critical evaluation of the international literature on port sustainability assessments is undertaken to distil commonalities in global performance indicators, and to identify typical frames used in the design of sustainability performance indices. We apply this learning, together with place-based experiential knowledge, to develop a science-based framework for a Port Sustainability Performance (PSP) Index that is explicitly aligned with the Sustainability Development Goals (SDGs). We then apply a co-design process to demonstrate local customisation of the index to derive place-based quantifiable measures and targets. Further, for easy-to-use empirical verification, a simple spreadsheet is applied to develop a flexible weighted scoring matrix. The matrix uses place-based rating systems for selected measures and associated targets, and aggregates allocated scores into informative outputs. Finally, the concept of Circles of Sustainability is adapted for ports to visually display sustainability performance, in alignment with related SDGs. This research contributes to bridging the science-practice divide in reporting on port sustainability performance.@en

Water renewal and flushing in small, intermittently open or closed estuaries is receiving increasing attention particularly in light of the climate change induced alterations in run-off, wave and sediment transport conditions along coasts. The challenges of predicting the stratification-circulation state and the balance between tidal or freshwater flushing in response to the mouth dynamics of small, wave-dominated estuaries is the focus of the paper. Such predictions are required for determining estuary freshwater requirements or establishing an estuary's capacity to maintain sound water quality under pollutant discharges. Advances in simulating changes in stratification-circulation over long time scales are limited. Instead attention has focused on generating indices of stratification or water quality state using heuristic methods. In this paper, systems dynamics modelling is applied to simulate the non-linear response of the estuary to changes in river and marine water fluxes. The estuary is modelled as a basin with a specified water volume to water level relationship, connected to the sea by a channel with variable sill height, but fixed width. The direction and magnitude of the flow through the mouth determines whether the sill height erodes or accretes and hence the mouth dynamics (see Slinger, 2017). The tidal flux through the mouth co-determines the volumetric exchange of salt, influencing both the stratification state of the estuary and the degree of tidal or freshwater flushing. This is also influenced by run-off. The resulting dynamic balance is captured in two bulk indices, the Estuarine Richardson number and the bulk densimetric Froude number. Using measured data from the Great Brak Estuary, South Africa, the model is calibrated. Model simulations demonstrate the importance of tidal flushing and concomitant mouth breaching for water renewal as freshwater flushing declines under scenarios of increased water abstraction. Although the estuary remains partially mixed, there is increased average salinity and a more uniform the water column. Water releases and mouth breaching bring about a more natural stratification-circulation state, but these effects are short-lived.

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The Delft Method for System Dynamics (SD) is a proven method for learning basic SD. The method focuses on learning by doing: first you try to work through an exercise, and if you do not understand something, then you can look up the theory. The book contains exercises on topics such as causal loop diagrams, delays, and when SD is an appropriate methodology. It also contains modelling exercises that show students how to build low to medium complexity models, and how to use these models for policy analysis. The theory chapters cover all phases of the modelling cycle: problem articulation, conceptualisation, formulation, evaluation (including validation and scenario analysis), and policy analysis. This book is intended for students and teachers in large or small System Dynamics courses, and for motivated students that want to learn SD at their own pace.@en

For many years now, various knowledge evidence has indicated that the Dutch land and water systems are reaching their limits. Thus, instead of manipulating the water and subsurface to achieve the desired functions, functions need to follow what the land and water system can offer. Consequently, in 2022, the Dutch Ministry of Infrastructure and Water forwarded an innovative and transitional approach of letting water and soil guide the policymaking, namely ‘water and soil guiding’. In this light, this research on progress paper aims to understand the cumulative role that living labs and similar projects existing before the policy guide had in the institutionalization of this policy guide. Further, ‘water and soil guiding’ is just at an initiation stage. This paper further tries to understand in what capacity can living labs support the operationalization, execution, and monitoring of this policy guide. In our preliminary finding, a direct link between the establishment of policy guide and the living labs existing before this establishment has not been formulated yet. However, indirect links such as delivering hard knowledge evidence, and formation and expansion of networks with relevant stakeholders has been recognized as indirect links.@en

The necessity for evidence-based and socially applicable knowledge in policy processes underscores the importance of the science, policy, and society interface. This interface is increasingly desired to obtain a holistic perspective by integrating sectoral and interdisciplinary knowledge to address complex socio-technical issues (Eberle et al., 2021). Living labs have emerged as promising vehicle fostering collaboration among diverse stakeholders from academia, public and private organizations, and civil society to drive innovative solutions. While living labs provide contextual understanding through real-life experiments and engage diverse stakeholders, they do not inherently enhance policy integration (Willems et al., 2023). To leverage the knowledge and resources from living labs to policymaking, learning from these environments must be scaled up or replicated to tackle similar challenges elsewhere. Consequently, living labs must showcase their impact through tangible results (innovations), enhance stakeholder capacities, and facilitate iterative learning for continual improvement. While there have been some efforts in scaling up and iterating outcomes as well as improving the impacts, understanding the occurrence of learning within living labs is often overlooked.

Thus, in this study, we analyse the learning dynamics in living labs, recognizing that attention to learning within co-creative environments can help realize the desired outcomes and impacts by exploring what is being learned, who is learning, and how learning occurs (Bhatta et al., 2023). To this end, we first developed a learning framework for living labs, identifying (i) types of learning as content-, capacity- and networking-related, (ii) levels of learning as individual-, group- and organization/societal-level, and (iii) processes of learning as intentional and incidental. Subsequently, we applied this framework to the KLIMAP project, which aimed to develop climate adaptive water and soil management pathways in Dutch sandy soil region. Our analysis uncovered several evidence of various learning types, levels and processes linked to the project’s outcomes. An indirect yet significant policy outcome of KLIMAP is the attention to water and soil management in Dutch policymaking through the water-bodem sturend framework. This outcome is attributed to years of research and numerous climate adaptation, land, and water management projects, including KLIMAP. Additionally, we formulated recommendations to enhance the impacts of the living labs as, ensuring inclusion of all relevant stakeholders, emphasizing effective communication among project stakeholders and with the wider public, providing accessible content through diverse mediums like audio-video, flyer and text, and acknowledging the time and labour-intensive nature of these interactions.@en

Nature-based Solutions (NbS) are actions that harness nature to help address major societal challenges. The assessment frameworks for NbS proposed in the literature differ in scope and intended use. In 2020, the International Union for Conservation of Nature (IUCN) introduced their Global Standard for NbS as a framework that can be used by anyone working on different types of NbS. Since research on the applicability of the IUCN Standard remains limited, the aim of this paper is to analyse whether the IUCN Standard may be used as an overarching assessment framework for NbS in river flood management applications and to identify the main differences in content with other NbS-frameworks. This was achieved through a comparison with 29 assessment frameworks for NbS, that are applicable to physical interventions for riverine flood risk reduction. The comparisons showed that the IUCN Standard has the largest breadth in scope of application and may therefore be used as an overarching framework. In addition, we identified a distinction between frameworks for the assessment of project processes (process-oriented) and project results (results-oriented), where the IUCN Standard can be characterized as process-oriented. This implies that the IUCN Standard may be used to assess the processes (e.g. stakeholder engagement and adaptive management) of planned, ongoing or completed NbS projects for a wide variety of environmental contexts and societal challenges. This will help persuade policy makers to consider NbS as one of the solutions in flood management issues, next to or in combination with e.g. engineering solutions or changing land use. We also identified that, while the IUCN Standard is straightforward to use and incorporates stakeholder input, the environmental context specificity as well as guidance depth on resources for assessment can be improved.@en

Communal rangelands in South Africa are generally perceived as overgrazed owing to complexities in their histories and collective utilisation which often leads to improper management. A suitable solution has not been found in land management policies because local people’s contexts and their indigenous knowledge are ignored. Hence, this paper is aimed at (i) assessing the role indigenous knowledge can play in communal rangeland management, (ii) exploring working solutions to incorporate indigenous knowledge into effective communal rangeland management and land use policies, (iii) assessing mechanisms for generational transfer of indigenous knowledge. Findings from the Participatory Geographic Information System (PGIS) and Focus Group Discussion, conducted with Cata and Guquka villages in the Eastern Cape province were synthesised. This revealed that communal farmers have in-depth knowledge of their communal land, past and present rangeland management strategies and changes in rangeland condition. However, there is breakdown in the indigenous knowledge system whereby this knowledge is not being transferred and translated into good rangeland management practice, owing to the ageing population of communal farmers, limited youth involvement in livestock farming and limited access to extension services. This suggests a need for new policy approaches that would include participation of local people in policy planning and development.@en

This paper provides a historical perspective on the evolution of water governance in the Republic of Ireland where long-term shifts in agricultural activities, demographic characteristics, water and debates over drinking water supply charges have influenced water resources governance and the integration of management practices. Drawing on threads from the past, the paper first describes how water governance from the early 1950s focused on rural access to water, pollution control and monitoring. With the advent of the Water Framework Directive in 2003, the crux of policy and management practices changed, with 81% of present policies mirroring Integrated Water Resource Management principles. However, issues such as the implementation of drinking water supply water charges and equitable access to water resources remain controversial. Looking to the future, the effects of climate change and land use planning, as well as demographic changes and international legislation are among those factors influencing water policy and management in the Republic of Ireland. Structured stakeholder engagement and further research directed at improving water quality is advocated to promote a sustainable and equitable water future.@en

The long-term sediment demand of the Dutch coast is integral to the current Dutch Coastal Flood and Erosion Risk Management policy. The Coastal Genesis 2 research programme was initiated to address the sustainability of this policy under sea level rise by focusing on key uncertainties in the conceptual model of the sediment demand of the Dutch coast. The substantive scientific contributions of the Coastal Genesis 2 research programme are analysed in this paper by applying an output-outcome-impact framework. The direct outputs of the programme are categorised in terms of the knowledge types of a 5-element framework, namely measurement data, simulation models, system understanding, conceptual models, and policy and practice. The research outcomes arise from the interactions of these knowledge types. Our analysis of these outcomes highlights that synthesising new scientific insights into shared conceptual models is critical to achieving impact in policy and practice. In the Dutch situation, a new shared conceptual model of the long-term sediment demand enabled the development of four potential nourishment strategies aiming to meet the strategic goals of the Coastal Flood and Erosion Risk Management policy on a timescale up to 20 years. In 2021, the Minister of Infrastructure and Water Management officially articulated her intention to adopt the advised nourishment strategy from 2024 onwards. This represents a lasting impact of the Coastal Genesis 2 research programme in policy and practice. Further, the insight regarding the pivotal role of shared conceptual models as intermediary between science, policy and practice may prove useful in the design of future research programmes aiming to influence policy.@en

Learning is an integral part of living lab activities and outcomes. This research in progress paper aims to understand the learning aspects in the collaborative activities and innovative outputs of living labs by developing an analytical learning framework for living labs and applying it to the case study of KLIMAP living labs in the Netherlands. The research adopts a mix of approaches, including qualitative document analysis, interviews and participation in brainstorming and knowledge sessions. The study develops a working analytical living labs learning framework. The preliminary findings of the framework in the KLIMAP living lab show different types of knowledge on content, capacity and network are intentionally or incidentally produced at different levels (individual, team, community) of a living lab.@en

Intervention methods to establish commitment to (collaborative) action are of potential interest to researchers and policymakers intent upon including stakeholder perspectives in natural risk governance (Scolobig, Nat Hazards 81:27–43, 2016). In this paper, a 6-step co-design method for engaging with local people in collaboratively envisioning nature-based solutions for flood defence is described. The problem structuring base of the participatory method is extended to accommodate the multi-actor situation and the local context of flood risk management. The intervention method is applied in a workshop in the Houston–Galveston Bay area in October 2014. At that time there was strong contestation surrounding the proposed Ike Dike with alternative combinations of nature-based and smaller conventional engineering solutions being proposed. The results indicate that the local participants were able to envision a wide range of future outcomes for the bay and were able to use the insights on nature-based solutions and the social contacts that they acquired at the transdisciplinary workshop to mobilize commitment to joint action. This action focused on collaboration rather than specifying ecological or technical infrastructural requirements and was instrumental in initiating more open discourse on flood defence options for the Houston–Galveston Bay area. The paper concludes that the generic applicability of the co-design method is limited by the requirement to understand and accommodate local circumstances and participants’ insights within the workshop.

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The development of the bilateral Long Term Vision for the Scheldt Estuary between 1999 and 2001 reveals that it is possible to move from a history of conflict to cooperation in just two years. A retrospective, insider perspective is used to analyse the integrated three-layer hybrid modelling at the heart of this groundbreaking agreement. We tell an untold story of the collaborative eco-morphological modelling activity that served as a boundary object supporting communication and contributing to a model-based metaphor of the intrinsic character of the estuary–its most lasting contribution.

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A large sandy peninsula and beach were realized in Dutch coastal waters in the Sand Engine pilot project. In addition to the benefits for flood protection, the Sand Engine generates multiple other societal values. It provides a new type of landscape of uncommon size along the Holland coast where nature, culture, history and the future come together. In this article we discuss the added value of the Sand Engine for culture and the arts, its iconic value and the development of knowledge in diverse sciences, most notably morphology, archaeology and palaeontology, as well as its educational function. We explore how different governance modes can influence how the added value is generated and what type of societal value arises. We distinguish four different governance modes related to the level of control exercised by authorities: directive, co-creational, facilitatory and observational. Different modes can co-exist and may change over time. For the Sand Engine we find that the knowledge development was highly directed, archaeology and palaeontology were facilitated, while an observational mode was employed towards arts and culture. The study leads to the inference that when the physical and societal space is created, societal value-added initiatives emerge.@en