D6.3 Open data management plan – Update 2

AUTHORS: Stratis Alexandrou
SHORT DESCRIPTION:

This report presents the third and final edition (Update 2) of the DIAMOND project’s open Data Management Plan (DMP). Like the previous DMP reports (D6.1 and D6.2), it describes the data that the project uses and generates, outlines the strategy for supporting Findable, Accessible, Interoperable, and Reusable (FAIR) data, and clarifies how resources and responsibilities are organised to ensure proper data management, data security, and attention to ethical requirements. Although this update does not markedly revise the practices established in earlier versions, it provides an updated overview of all datasets, journal articles, and project deliverables that have been released up to November 2025. These outputs are openly accessible through the DIAMOND website and its Zenodo community, while journal articles are also available through the respective publishers. In parallel with this report, the project continues to maintain a machine-actionable data management plan through OpenAIRE’s ARGOS service, which is kept up to date with metadata for all generated datasets. Although this document represents the last DMP report to be produced within DIAMOND, data management procedures will continue throughout the final project year.

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D6.8 IAM Application Library

AUTHORS: Georgios Xexakis
SHORT DESCRIPTION:

This deliverable presents the initial version of the Application Library developed within the IAM PARIS platform, along with the first application produced under the DIAMOND project. The library intends to constitute a collection of software applications covering the full lifecycle of climate-economy and energy modelling, from model development and configuration to the communication and use of modelling results. Apart from applications developed or curated by the IAM PARIS team, this first release incorporates applications previously catalogued by the Integrated Assessment Modelling Consortium (IAMC) and the World Resources Institute (WRI), aiming to establish a comprehensive portal for applications that support climate action. More than 150 applications are currently featured in the Application Library. Both platform developers and external contributors can extend the library’s content with ease using the platform’s Content Management System (CMS), helping to keep the library up to date. To further facilitate the usability of the platform, an AI-based chatbot was developed within the DIAMOND project to support users navigate the model documentation and results available on the platform. In the final year of DIAMOND, a second version of the deliverable will be released (D6.9), building on the current functionalities of the library, to further strengthen its comprehensiveness, findability, and usability.

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D6.10 Report on synergies with other projects

AUTHORS: Konstantinos Koasidis
SHORT DESCRIPTION:

This report outlines the DIAMOND project’s strategy for developing structured, meaningful synergies with other research initiatives—particularly its Horizon Europe sister projects—to maximise scientific impact, enhance cooperation, and strengthen the relevance of climate-policy modelling. Building on the project’s core vision of openness, interdisciplinarity, and co-creation, the report establishes how collaboration with aligned projects can support the project’s ambition to advance next-generation integrated assessment modelling (IAM) and to contribute robustly to European and global climate policy processes. Expanding on the plan, we highlight the synergies established so far, which include 35 joint scientific publications, 33 joint conference presentations, the organisation of two webinars with contributions from other projects, the co-organisation of two side events at COP28 and COP30, and active participation in the MAIA project’s activities and Climate Research Communication Network.

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D4.4 Climate uncertainties and carbon-climate feedbacks

AUTHORS: Glen Peters
SHORT DESCRIPTION:

The assessment of climate impacts and adaptation options relies heavily on resolved spatial information from climate change projections. Current methods for generating these projections, particularly with the use of Earth System Models (ESMs), face challenges due to extensive computational and human resources requirements. To enhance the exploration of diverse societal outcomes and incorporate climate impacts into broader societal and economic models, rapid spatial emulation of ESM responses is essential. Existing linear scaling techniques often assume that spatial climate signals scale linearly with global temperature change, where the pattern of response is independent of the nature and timing of emissions. To address these issues, we developed the METEOR novel emulation system, representing multi-timescale climate responses to various climate forcers. On top of the description of the core METEOR model, we also expand on v1.5, which introduces a monthly climate variability system that accurately generates sub-annual climate sequences reflecting realistic seasonal cycles and interannual variability. This integrated framework enhances climate risk assessments by enabling extensive ensemble generation and supporting accurate sub-annual impact evaluations. Its open-source design allows for rapid development of sector-specific calculators, bridging the gap between global climate data and local decision-making. Future enhancements can expand the system’s capabilities into sectors such as agriculture and health, along with improved analysis of compound events and seasonal effects under extreme warming conditions.

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D7.4 The DIAMOND Project CDE Plan – Update 2

AUTHORS: Georgios Xexakis
SHORT DESCRIPTION:

This report is the second update to the DIAMOND project’s strategy for communication, dissemination, and exploitation (CDE) activities to relevant audiences, submitted one year prior to the project’s conclusion.
As in the initial CDE plan described in deliverable D7.2 (and its update in D7.3), this report first defines the scope of CDE in the context of DIAMOND and sets the overall targets of the project, which aims to follow a tailored approach to develop inclusive messages and convey them to specific audiences through efficient communication means. The report also sets quantifiable indicators for specific activities that will be tracked throughout the duration of the project, such as publishing at least 10 articles and press releases throughout the project.
Next, the report iterates the identification of the project’s target audiences, which include modellers, researchers, policymakers, and industries, as well as NGOs and civil society organisations. A multi-pronged selection of promotional channels/platforms is suggested, to more effectively target these varied populations. The promotional channels to reach project audiences include the project’s website, social media (e.g., X, LinkedIn, and Instagram), the IAM PARIS platform, synergies with other relevant projects, open-access papers, and more. A visual identity and a logo for the project have been developed and has been used throughout the project, including in the design of the project website and promotional materials such as infographics, presentations, and videos.
The plan concludes by reporting progress towards the CDE indicators, as of September 2025, and outlines the forthcoming actions aimed at enhancing dissemination and stakeholder engagement.

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D6.6 Open-source software development pipelines

AUTHORS: Konstantinos Koasidis | Georgios Xexakis
SHORT DESCRIPTION:

This report synthesises and contextualises common and pertinent software engineering practices with the potential to improve the efficiency, transparency, and credibility of IAM development and use. The practices are collected from the scientific literature on software engineering and are adapted to the needs and requirements of IAM development. Compared to previous efforts that aimed to synthesise best practices for model development and use, we instead develop a comprehensive framework of state-of-the-art practices that does not only provide a useful checklist for modellers but also hands-on examples on how to implement these practices. Contrary to model use, which was addressed to a larger extent in the recent literature—e.g., in terms of harmonisation techniques or participatory modelling practices—our framework focuses on aspects of model development instead, which has so far remained largely unexplored. After its elaboration, the framework is used to evaluate the current practices of the modelling teams of DIAMOND based on a survey, which was distributed to the modelling teams between April and May 2025 and included questions aiming to identify their priorities and potential areas of improvement. Along with additional reports on open science, the framework presented here will be operationalised as model development progresses.

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D1.3 Report on project and SAB Meetings - Update 1

AUTHORS: Anastasios Karamaneas
SHORT DESCRIPTION:

As described in the project’s Quality Management Plan, online and physical (hybrid) meetings take place regularly in order for the consortium to discuss and collaborate during the project’s time horizon. Hence, Executive Board Meetings (EBMs) are organised on a monthly basis and General Assembly (GA) meetings twice per year. The EBMs are hosted virtually, via Microsoft Teams, in one-hour seasons, while GA meetings take place either online in a two-day setup or physically (in a hybrid format, supported by Microsoft Teams, for online participation) back-to-back with other project events, such as workshops. Physical GA meetings without any accompanying events are generally avoided due to sustainability concerns. EBMs are organised in order to inform all DIAMOND partners on the progress of all Tasks and to guarantee that all milestones and deliverables are prepared in time. In this context, the ICCS administration team organises these monthly meetings and prepares a draft agenda, before finalising it with the rest of the partners.
During the second year of the project and the first half of its third year, one physical meeting was held, which took place in Lausanne, Switzerland on the 23rd and 24th of May 2024. In addition, during this 18-month period, 2 GA meetings and 8 EBMs were held online via Microsoft Teams. Both physical and online meetings are characterised by high attendance since almost all consortium partners are represented in each individual meeting, showcasing the partners’ dedication to the project’s progress and objectives.

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D2.3 Multi-layered stakeholder engagement strategy – Update 2

AUTHORS: Daniel Cassolà
SHORT DESCRIPTION:

The DIAMOND multi-layered stakeholder engagement strategy accompanies and enriches the research process by enabling the exploration of the multiplicity of perspectives on how models can address concerns from the target groups, attending carefully to differences, complexities, and range of variation in the data.
It provides a description of the heuristic cross-disciplinary integration methodology adopted in the project; illustrates the co-design process involving researchers (e.g., modellers, SSH researchers), policymakers, business, social and environmental stakeholders, and citizens; and gives details on the stakeholder engagement plan.
We highlight how the integrated approach facilitates seamless interaction with other WPs, optimising co-creation and application of models, scenario building, and policy roadmap development. The strategy also takes stock of the work done in Phases 1-2 of the co-design process, while outlining the plan for outstanding activities in all three phases. It describes the dynamically updated stakeholder database, which incorporates over 50 stakeholders pledging to actively participate in all DIAMOND stakeholder-related activities. These play a key role in the co-design process, and those initially allowing us to contact were invited to strategic foresight workshops alongside other experts, and other project activities.
In this final update, we present the outcomes and assessment of the first two strategic foresight workshops with stakeholders, we describe the methodology and approach for the third one and the planned climate-friendly practice workshop engaging citizens, and we outline the process for the upcoming engagement phases.
The report also provides examples of the dialogue loops between researchers and practitioners aiming to co-create and assess climate change neutralisation actions, and the database structure for stakeholder engagement.

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D6.4 Report on communities of practice

AUTHORS: Konstantinos Koasidis
SHORT DESCRIPTION:

DIAMOND’s key objective is to produce iteratively updated, upgraded, open-source versions of six leading integrated assessment models (IAMs). Two major challenges arise in this endeavour. First, the models should be associated with a community of users that will actively employ these models both during and beyond the duration of the project. Second, IAMs are usually associated with a steep learning curve, making it difficult for any new users to overcome the barriers to entry, familiarise with, and actively use the models. In this report, we attempt to tackle these two challenges, by reporting on the activities of the project to establish an active and engaged network of IAM developers and users, as well as organise capacity development activities. Focus is placed on pre-existing dedicated communities of each model, broader modelling communities, forums, and conferences, as well as communities in the broader sustainability landscape. The report also presents courses developed to train the young generation of scientists and modellers, as well as the plans for organising capacity development webinars. The report will continue to be updated as more communities and capacity development activities are organised in the duration of the project.

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D3.2 Model development strategy – Update 1

AUTHORS: Dirk-Jan Van de Ven
SHORT DESCRIPTION:

Integrated Assessment Models (IAMs) have historically been the dominant tools in mitigation policy assessment and the analysis of the implications of global and/or regional scenarios. In DIAMOND, a coordinated effort is undertaken to update, upgrade, expand, and integrate six different economy-wide IAMs. In a previous stage (D3.1), different modelling teams outlined initial development plans for their models. To enhance the broad application of the models, these plans must be updated to reflect stakeholder needs. This deliverable presents the updated model development strategies, incorporating progress and adjustments based on stakeholder feedback obtained in a dedicated workshop. Each IAM team completed an updated internal survey, showing progress and describing the integration of stakeholders’ insights in development strategies. Survey outputs show that all models plan to expand their geographical and sectoral/technological coverage. The models have updated their plans to improve the geographical detail in the EU and/or expand coverage in the rest of the world. In terms of technological coverage, the updated development strategies align with the higher technoeconomic detail demanded by stakeholders, particularly improving the representation of hydrogen and electricity storage technologies. In terms of policy representation, a large part of newly developed capacity will focus on trade policies, while all models will also be improved in terms of behavioural measures, such as transport modal shifts. Since the updated survey also highlighted data requirements for different input assumptions used by the models, this report provides a preliminary model harmonisation strategy that can be used in model development and future model intercomparison studies.

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D7.5 Academic, policy and broader societal outreach

AUTHORS: Anastasios Karamaneas
SHORT DESCRIPTION:

In order to reach scientific and policy audiences, DIAMOND is sharing its accumulated knowledge and scientific insights in multiple conferences and high-impact journals. Moreover, to facilitate the project’s aim to inform policy choices, a set of commentaries and articles displaying the project’s scientific outcomes are published in various media outlets for policymakers, businesses, civil society actors, and other stakeholders. In the same context, DIAMOND has created a set of infographics to further disseminate its scientific and policy outputs on social media.
By November 2024, DIAMOND has published 16 scientific publications in high-impact journals as well as 27 papers/posters/presentations in scientific conferences. Moreover, it has produced 5 press releases and 7 newsletters to boost its policy outreach. In a broader context, in an endeavour to inform a wider audience on environmental, biodiversity, energy, and sustainability issues related to the project, the consortium has engaged in communicating scientific insights in multiple media outlets and social media, a series of infographics, and one article in the press. Finally, project partners have represented the project in 7 policy/stakeholder engagement events and workshops, to maximise the project’s outreach and enhance mutual learning and cooperation.

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D6.2 Open data management plan – Update 1

AUTHORS: Konstantinos Koasidis
SHORT DESCRIPTION:

The current report documents the second version of the open Data Management Plan (DMP) of DIAMOND. As in the initial DMP report (D6.1), this report includes a description of the data that will be used and generated during the project; a strategy and an allocation of resources and responsibilities for achieving Findable, Accessible, Interoperable, and Reusable (FAIR) data; and details on how we shall ensure data security and correct handling of all ethical aspects.

TAGS: WP6
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D7.3 The DIAMOND Project CDE Plan – Update 1

AUTHORS: Georgios Xexakis
SHORT DESCRIPTION:

This report is the first update to the DIAMOND project’s strategy for communication, dissemination, and
exploitation (CDE) activities to relevant audiences.

TAGS: WP7
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D2.2 Multi-layered stakeholder engagement strategy – Update 1

AUTHORS: Daniel R. Cassolà
SHORT DESCRIPTION:

The DIAMOND multi-layered stakeholder engagement strategy will accompany and enrich the research process by enabling the exploration of the multiplicity of perspectives on how models can address concerns from the target groups, attending carefully to differences, complexities, and range of variation in the data.

In this update, we highlight how the integrated approach facilitates seamless interaction with other WPs, optimising co-creation and application of models, scenario building, and policy roadmap development. The strategy also takes stock of the work done in Phase 1 of the co-design process.

TAGS: WP2
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D2.4 Stakeholder-informed research questions

AUTHORS: Stephanie Briers | Bianca Vienni-Baptista
SHORT DESCRIPTION:

The DIAMOND project undertakes a transdisciplinary (TD) approach to update, expand, open, and develop scenarios for six Integrated Assessment Models, with the aim of addressing net zero emissions and sustainable development. WP2: Codesign leads this TD approach, which is broken down into three multi-stage phases: i) mutual understanding; ii) knowledge co-production; and iii) model co-ownership. Deliverable D2.4 presents the results of the first two out of three stages in “Phase 1: Toward Mutual Understanding”, which is based on the concept of “joint-problem framing” indicated by the TD scientific literature as the initial step within a fruitful stakeholder engagement plan. The aim and output of this phase is a set of stakeholder-informed research questions, which are co-created in three stages. Stage 1 is a familiarisation stage, aiming to find common ground among DIAMOND partners and their work. Stage 2 focuses on reaching mutual understanding of the goals and aims of the transdisciplinary approach to be implemented by DIAMOND partners. This Deliverable, D2.4, presents these two stages and concludes in actions falling under three themes. These themes include: (a) strengthening internal and external communities of practice, (b) focusing codesign activities, and (c) improving the effectiveness of stakeholder engagement. These outcomes will be picked up on in Stage 3, which commenced in January 2024 and will conclude Phase 1 of DIAMOND’s codesign process with the output of a final set of stakeholder-informed research questions, to be presented in Deliverable D2.5 (update of this deliverable).

TAGS: WP2
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D1.2 Report on project and SAB Meetings

AUTHORS: Anastasios Karamaneas | Konstantinos Koasidis | Alexandros Nikas
SHORT DESCRIPTION:

This deliverable aims to showcase a periodic report of all project meetings (physical and online), including the meetings’ agenda, list of attendees, and meetings. Moreover, this deliverable includes any feedback provided by the Scientific Advisory Board (SAB) from any online and physical communication, especially during dedicated SAB sessions typically held within GA meetings.

TAGS: WP1
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D1.1 Quality Management Plan

AUTHORS: Konstantinos Koasidis
SHORT DESCRIPTION:

The Quality Management Plan defines the quality policy and plan to be applied in the DIAMOND project. Its purpose is to establish the roles, procedures, metrics, and tools necessary to ensure that the DIAMOND project is implemented smoothly and that all project deliverables are of a high quality and of scientific value and that they are submitted to the EC services in time. Complying with the quality management procedures falls under the responsibility of the Project Coordinator, the Project Manager, the Quality Manager, the Work Package leaders, and the Task leaders. Effective channels of internal communication have been established since Month 1, enabling smooth exchange of all necessary information among project partners. A thorough quality procedure has been established: each project deliverable will be quality-reviewed by two to five internal reviewers (depending on the nature of the deliverable), before being revised accordingly and then reviewed and edited for a final time by an additional member of the management team from ICCS. This will ensure that the submitted deliverables adequately satisfy the quality criteria of clarity, completeness, accuracy, relevance, and technical compliance. Specific performance indicators have been set for which monitoring data will be collected regularly, aimed at fully informed reporting. Finally, a risk management plan has been put into place, consisting of the identification of the technical (research-oriented) and management (project implementation-related) risks.

TAGS: WP1
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D7.2 The DIAMOND Project CDE Plan

AUTHORS: Georgia Polytanou
SHORT DESCRIPTION:

This report is the DIAMOND project’s initial strategy for the communication, dissemination, and exploitation (CDE) activities to relevant audiences. The report first defines the scope of communication, dissemination, and exploitation in the context of DIAMOND and sets the CDE targets of the project. The overall targets of the project include a tailored approach to convey the project’s key messages and efforts towards inclusive messages and communication means. The report also sets quantifiable indicators for specific activities that will be tracked throughout the duration of the project, such as achieving/publishing at least 10 articles and press releases in the project’s course. Next, the report identifies the project’s target audiences, which include modellers, researchers, policymakers and industries as well as NGOs and civil society. A multi-pronged selection of promotional channels/platforms is\ suggested, in order to more effectively target these varied populations. The promotional channels to reach project audiences include the project’s website, social media channels media (e.g., Twitter, LinkedIn, and Instagram), the I2AM PARIS platform, synergies with other relevant projects, open-access papers, and more. A visual identity and a logo for the project have been developed and have been used in the design of the project website and promotional materials including infographics and presentations. The plan concludes by reporting progress towards CDE indicators and outlining the next steps for improving dissemination. The CDE plan will be further updated in Months 18 and 34.

TAGS: WP7
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D2.1 Multi-layered stakeholder engagement strategy

AUTHORS: Daniel Rodríguez Cassolà
SHORT DESCRIPTION:

The DIAMOND multi-layered stakeholder engagement strategy will accompany and enrich the research process by enabling the exploration of the multiplicity of perspectives on how models can address concerns from the target groups, attending carefully to differences, complexities, and range of variation in the data. This report provides a description of the heuristic cross-disciplinary integration methodology adopted in the project; illustrates the co-design process involving researchers (e.g., modellers, SSH researchers), policy makers, business, social and environmental stakeholders, and groups of citizens; and gives details on the stakeholder engagement plan. The report also provides examples of the macro-questions to trigger each stage of the dialogue loop between researchers and practitioners aiming to co-create and assess climate change neutralization actions, and the database structure for stakeholder engagement in strategic foresight.

TAGS: WP2
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D3.1 Model development strategy

AUTHORS: Jon Samperdo
SHORT DESCRIPTION:

Integrated Assessment Models (IAMs) have historically been the dominant tools in climate policy assessment and the analysis of the implications of alternative global and/or regional scenarios. In DIAMOND, a coordinated effort will be undertaken to update, upgrade, expand, and integrate six different sector-wide IAMs. This deliverable first outlines generally perceived limitations of such models, and how interaction with stakeholders in the development process is important to improve the policy relevance of their outputs. To do so, an overview and a perceived model development plan within DIAMOND is provided for each model. This information has been gathered through a harmonised survey that was filled by all modelling teams and attached to this deliverable. The outputs of the survey show that all models plan to expand in both geographical and sectoral/technological coverage. Three out of six models (GCAM-Europe, CLEWs-EU, and OPEN-PROM) aim to represent the European Union (EU) by individual member states, while two other models (GEMINI-E3-EU and OMNIA) to make progress in the geographical detail in the EU as well. Three models (NEMESIS-World, OPEN-PROM, and OMNIA) are expanding coverage in the rest of the world. In terms of technological coverage, development strategies are also heterogenous, but with clear priorities for an improved representation of hydrogen technologies in all six models of the DIAMOND project as well as electricity storage technologies in four of the models. In terms of policy representation, a large part of newly developed representation will be focusing on trade policies, while all models will also be improved in terms of implementation of behavioural measures. 

TAGS: WP3
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D6.1 Open data management plan

AUTHORS: Alexandros Nikas
SHORT DESCRIPTION:

This report documents the first version of the open Data Management Plan (DMP) of DIAMOND. The DMP currently includes an initial description of the data that will be used and generated during the project; a strategy and an allocation of resources and responsibilities for achieving Findable, Accessible, Interoperable, and Reusable (FAIR) data; and details on how we will ensure data security and correct handling of all ethical aspects. In parallel with this report, we have also developed a machine-actionable data management plan1 (maDMP) using the ARGOS service of OpenAIRE. The maDMP will be continuously updated with metadata for all project datasets that will be generated from project activities. The DMP report will also be frequently updated during the project (M18, M36). 

TAGS: WP6
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D7.1 DIAMOND Visual Identity and Website

AUTHORS: Georgia Polytanou
SHORT DESCRIPTION:

The DIAMOND website will serve, according to the DoA, as a constant node aiming to present information on the project and disseminate its results, as well as act as a reference site with material and links related to the models produced and used, the themes analysed, other research projects and initiatives of relevance, and news on climate action and science. The development of the website is essential to the effective promotion of the project concept, progress, activities, results, and stakeholder engagement. The project’s progress and outcomes will be published online. Furthermore, the visual identity of DIAMOND will convey the message of what the project is about and will communicate objectives, methods, and expected results to stakeholders. This report provides a description of the website’s design requirements and development process, its structure, as well as reference screenshots of its main sections. It also showcases how the website aims to serve as the hub of the DIAMOND project communication strategy by acting as a consolidated portal for all project-related information and by connecting to all publications and materials created in connection with the project. What is more, this report presents in detail the visual identity of the project. The visual identity and the materials presented on the website will be updated as project needs to evolve. 

TAGS: WP7
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