Problems and Purpose

The convention addressed two overlapping problems. The first is technical and policy-relevant. Cement is responsible for around 8 per cent of global carbon dioxide emissions and roughly 12 per cent of French industrial emissions [1, 5]. Within France’s Stratégie Nationale Bas-Carbone and its obligations under the Paris Agreement, the cement and concrete sector is therefore a structural obstacle to net-zero by 2050 [1, 5]. The headline question put to participants was framed accordingly: by what conditions and modalities cement and concrete construction can be decarbonised in time to meet the 2050 target, and which processes and innovations should be prioritised [1].

The second problem is methodological and is named by the organisers themselves. The role page of the IESF microsite frames the convention partly as a question about “the place of scientific knowledge in political and media debates” and about “the new practices in the construction of knowledge that should be encouraged” [3]. The convention is therefore positioned as both a policy-advisory body and a methodological demonstration: a structured exposure of participants to scientific evidence under live fact-checking, dialogic small-group work, and shared drafting. This dual purpose distinguishes it from a standard expert commission and from a standard citizens’ assembly.

These two problems are linked. Cement decarbonisation is conventionally treated as a technocratic issue, with French and European pathways produced by industry roadmaps, ministerial expert groups, and trade bodies including France Ciment [4]. A standard public consultation on cement might plausibly struggle to attract a representative lay public, and a standard expert commission would reproduce the existing technical debate. IESF’s stated purpose was to populate the gap with a third option: a deliberative body whose participants are technically literate but not yet professionally captured, deliberating with structured access to a range of expert views. The democratic significance of the case does not rest on social representativeness alone. It rests on whether a panel of trained but unaffiliated young scientists was given real opportunities to learn, deliberate, help set the agenda, draft recommendations, and present them publicly, in a sector normally shaped by experts, the state, and industry. Whether that significance holds up is examined in the Qualitative Analysis on Democratic Goods below.

Background History and Context

Three contextual layers shape the convention. The first is France’s established practice of large-scale deliberative processes. The Convention Citoyenne pour le Climat of 2019 to 2020, in which 150 randomly selected citizens deliberated on greenhouse-gas reduction, supplied the proximate institutional template. The IESF microsite makes the inheritance explicit, describing the cement convention as having been organised “sur le modèle des conventions citoyennes” [1]. Res Publica, which facilitated the cement convention, was itself involved in the Climate Convention, providing methodological continuity and recognised expertise [1, 10].

The second layer is sectoral. Cement and concrete decarbonisation is not new on the French policy agenda. The curated reading list given to participants before deliberation began [4] reflects an established technocratic frame: it includes ADEME’s 2021 sectoral transition roadmap, France Stratégie’s 2023 abatement-cost report, France Ciment’s decarbonisation pages, European-level documents such as Cembureau’s net-zero roadmap and the academic LC3 (Low-Carbon Cement) initiative, and sociological and critical contributions such as Magalhães’s work on “ciment vert” and The Shift Project’s PTEF sectoral report. The convention did not arrive in a policy vacuum: it organises a non-industry, non-ministerial reading of that body of evidence.

The third layer is institutional. This is IESF’s second student scientific convention; the first concerned hydrogen and was, by Guesnon’s account, the template IESF chose to replicate [10]. The format is therefore part of an IESF programme of sectoral student conventions, with a successor on agriculture planned for 2026 to 2027 [10]. Selecting postgraduate students in the sciences and engineering from French institutions and EPFL Lausanne gives the panel a plausible claim to future professional stake-holding: participants’ careers will unfold across the 2025 to 2050 horizon of the recommendations [2, 6]. This gives the panel a generational and professional relevance to the transition, but it should not be confused with representation of affected publics. The panel has no claim to current social representativeness, and that trade-off is built into the design.

Organizing, Supporting, and Funding Entities

The convention was organised by IESF, the federation that represents engineers and scientists in France. IESF positioned itself as both the commissioning body and the sponsor, framing the convention as a way to mobilise “a new generation of engineers” on the climate transition [10]. The IESF comité de pilotage (steering committee), coordinated by Claire Le Floch, ran operations and met weekly, with named voluntary leads for fact-checking, communications, school relations, pedagogical content, partnerships, logistics, and the sortition mechanics [8].

Facilitation was delegated to Res Publica, an independent consultancy specialising in public participation and deliberative processes [6, 10]. Res Publica had previously supported the 2019 to 2020 Convention Citoyenne pour le Climat, which Guesnon cites as the recognised expertise the firm brought to the cement project [10]. The Res Publica team comprised three consultants: a consulting director with strategic responsibility, Guillaume Guesnon as consultant, and a junior consultant, each working part-time alongside several other projects [10].

The governance design is unusually layered. Beyond the comité de pilotage and the comité d’expertise of speakers, IESF constituted a comité de gouvernance containing three guarantors with a formal veto over decisions linked to the convention, alongside partner organisations and the fact-checking team [6]. The three guarantors are Michel Lussault, a geographer, Dominique Ganiage, an independent consultant and CNDP-trained mediator, and Nathalie Durand, the CNDP delegate for Île-de-France [6]. The presence of CNDP-linked guarantors with veto rights is a structural transparency feature uncommon in non-statutory advisory mini-publics, and one whose practical weight is examined in the Qualitative Analysis below. The convention is supported under the patronage of Jean Jouzel, the climatologist and former IPCC vice-chair [1, 5].

Funding is mixed. The IESF home page categorises supporters by type of support. Public scientific and financial support is given by ADEME [1]. Financial support is given by the trade body France Ciment, the cement producers VICAT, Holcim, and Ecocem, the cement-plant builder Fives, the technical institutes École Française du Béton and AUGC, and the foundations Terra Nova, Fondation Terrega, and Fondation des Arts et Métiers, alongside Evolen [1]. The cover of the final report names ADEME and France Ciment as participating institutions [5]. Institutional, logistical, and communications support is supplied by CEREMA, CSTB, Académie du Climat, Mines Paris, Learning Planète Institute, and others [1]. Guesnon reports the Res Publica facilitation portion of the budget as approximately €50,000, with a typical total convention cost between €100,000 and €150,000 [10]. This does not prove capture, but it creates an appearance-of-independence problem: a deliberative process designed to scrutinise sectoral decarbonisation was partly financed by actors with direct stakes in how decarbonisation is framed. The democratic implications are returned to under Transparency below.

Participant Recruitment and Selection

Participation was limited to postgraduate students in the sciences and engineering at the M1, M2, or doctoral level, recruited from across French engineering schools, IUTs, and universities, with eligibility extended to EPFL Lausanne in Switzerland [2, 6]. IESF circulated a call for applications through its network of partner schools, relying on self-selection by interested students [10]. Around two thousand applications were received [10].

A random draw was then applied within the applicant pool, using four hierarchically ordered criteria. Gender parity took precedence, followed by field of study across the sciences and engineering, then geographic diversity (region of origin or location of the school or university), and finally level of study (M1, M2, or doctorat) [2]. An additional criterion, availability across all four weekends, was applied at the practical level [6]. Anonymised aggregate statistics on the resulting cohort are published on the IESF microsite as two infographics describing the gender, discipline, and geographical distribution of the panel [2].

Two features of this design merit attention before the analysis. First, the sortition operates over a self-selected, motivated, scientifically literate sub-population rather than over the underlying population of postgraduate scientists, let alone the general public. Guesnon describes this directly: “the candidates were volunteers, which constitutes, I think, an important first characteristic of the process. It was not a panel drawn by lot from the general population, as in the classic citizen convention” [10]. The “sortition” descriptor is therefore accurate but narrow. Second, participants were reimbursed for travel and accommodation but were not paid for their participation [10]. That single fact, when combined with the demand of four weekends in Paris during academic term-time, materially shaped retention.

Attendance fell from 43 students at the first session to 33 at the final session, against an objective of 50 [10]. Guesnon offers four overlapping explanations for the drop-off. Participants were not compensated for their time; weekend sessions in Paris compounded on top of full school weeks were physically demanding; IESF did not pre-screen applicants by interview to confirm interest and availability; and crucially, this kind of process “is not valorised by the school itself”, meaning home institutions did not recognise the participation as academic activity or count it toward formal credit [10]. Each of these is a feature of how the convention was institutionalised, not an accident, and each carries weight for the analysis below.

Methods and Tools Used

The convention is best described as a specialist mini-public modelled on a citizens’ convention. It draws on the Convention Citoyenne pour le Climat template, but with a shorter format and a panel narrowed to postgraduate scientific students [1, 10].

The process was structured around an initial videoconference briefing in September 2025, a Session 0 induction in collective intelligence, fact-based deliberation, and prospective work on 10 October 2025 at the Académie du Climat, and four working weekend sessions thereafter: Session 1 on 11 to 12 October 2025 at the Learning Planète Institute, Session 2 on 15 to 16 November 2025 at the Maison des ingénieurs agronomes, Session 3 on 13 to 14 December 2025, and Session 4 on 24 to 25 January 2026 [7]. Each weekend ran from Friday evening to Sunday early afternoon and combined three components: plenary expert presentations, brainstorming and small-group work to produce recommendations, and writing sessions to draft the report [4].

Speakers were selected jointly by IESF and Res Publica, with what Guesnon describes as “an explicit effort to balance the viewpoints represented on the sector” [10]. The selection was then validated by the guarantors as an external quality control [10]. The published intervenant list bears this out, with speakers drawn from climate and materials academia (Christophe Cassou, Karen Scrivener at EPFL, Guillaume Habert at ETH Zürich), public agencies (ADEME, CEREMA), think tanks and NGOs (The Shift Project, Réseau Action Climat), and industry (three named senior staff from VICAT, alongside representatives from ECOCEM, Terega, Fives FCB, and BPI France) [6]. The presence of multiple senior VICAT figures among the intervenants while VICAT also acted as a financial supporter is returned to in the analysis.

Two methodological devices are worth flagging. First, speakers for Session 1 were chosen by IESF and Res Publica to give baseline explanations of the subject, while speakers for Session 2 were chosen by the participants themselves on subjects they wanted to explore, with facilitators pairing each professor presentation with a counter-viewpoint presentation on the same subject [10]. This is genuine process-level agenda-shaping, though not control over the overall mandate. Second, between sessions, participants accessed a dedicated online platform containing session minutes, presentations, supplementary documents, and annotations from the fact-checking team [10]. The fact-checking layer itself was drawn from the citizen association C’est vrai ça, the Shift-Project-aligned volunteer network Les Shifters, and an author of an independent French public-organisation roadmap on cement decarbonisation [10]. Live fact-checking on this scale is unusual outside formal regulatory consultation, and is part of the convention’s methodological claim about scientific knowledge in public deliberation [3].

What Went On: Process, Interaction, and Participation

The deliberative work proceeded across the five weekends in three phases. The first phase comprised the Session 0 induction and Session 1: participants were inducted into collective-intelligence methodology and fact-based deliberation, then introduced to cement and concrete decarbonisation in two stages, with the Saturday covering the technical basics (history, lifecycle, manufacturing, climate impact) and the Sunday covering economic, industrial, regulatory, and political levers for sectoral change [7]. Speakers in this phase were academic and policy specialists chosen for their ability to explain a complex subject to participants who were scientifically trained but not necessarily specialised in cement-concrete decarbonisation [10]. The second phase, comprising Sessions 2 and 3, deepened the technical analysis along two axes: CCS in cement plants in November 2025, and alternative materials, low-carbon formulations, and processes in December 2025 [7]. Speakers for Session 2 were chosen by participants themselves, with paired counter-viewpoint sequencing [10].

The third phase was the drafting weekend of 24 to 25 January 2026. By this point, participants had worked across small groups during earlier weekends to identify the main ideas they wanted to carry into the final deliverable. The drafting weekend itself proceeded through a sequenced set of group formats. On the Saturday, the panel first agreed the overall structure of the report. Small groups then worked on individual subject areas with several alternative propositions per subject. This was followed by a World Café format in which two representatives stayed at each table while the rest of the panel rotated, adding information and amendments to the propositions. The Saturday closed with a plenary session in which each group presented its propositions and the full panel asked questions to refine and clarify. On the Sunday morning, all propositions were posted around the room and participants circulated freely, reformulating where appropriate. On the Sunday afternoon, each proposition was put to a plenary vote [10]. The voting threshold could not be verified from the published materials or the interview transcript, which limits how confidently the final recommendations can be interpreted as consensus outputs rather than majority-supported propositions.

The outputs of this drafting weekend are the 46 recommendations published in the February 2026 report [5]. Guesnon is explicit that “the recommendation was written by the participants” with Res Publica supplying “methodological support” only [10]. The locus of drafting authority therefore sat with the panel, and the per-proposition plenary vote provided the formal mechanism by which the panel exercised it. Guesnon describes the facilitators as keeping plural viewpoints in play (especially during Session 2’s mixed expert and participant-led format), supporting the small-group work, and keeping the fact-checking layer active during sessions [10]. Participants could ask questions during expert presentations and, through small-group work at the end of each day, develop their own positions [10].

Influence, Outcomes, and Effects

The convention produced three categories of effect that should be distinguished: outputs at the level of documents and ceremonies; outcomes at the level of participant capacity; and downstream policy or industry effects. The principal output is the 69-page final report dated February 2026, Convention Scientifique Étudiante sur la Décarbonation de la Construction Ciment-Béton: Rapport Final, produced under the patronage of Jean Jouzel and acknowledging the participation of ADEME and France Ciment [5]. Its 46 recommendations are organised under four macro-themes: sobriety (reducing construction in order to avoid emissions), efficiency (building differently in order to limit emissions), the use of carbon capture and storage only as a last resort, and education and awareness across the sector [5]. The report is accompanied by six audience-specific one-page summaries for politicians, finance, civil-society associations, cement producers, cities, and architects, and by a pedagogical infographic [1, 9]. A public restitution ceremony was scheduled for March 2026 [7], and Guesnon confirms that the official handover of the work took place at the Conseil économique, social et environnemental (CESE), with Res Publica represented by its consulting director [10]. The available evidence confirms report publication, audience-specific summaries, and CESE restitution, but does not allow a precise reconstruction of the relationship between the February report, the CESE handover, and the March public ceremony.

A second category of output is the participant cohort itself. The IESF microsite frames “a durable network of young scientists, trained on the complexity of decarbonisation” as an explicit deliverable [1]. Guesnon reinforces this, describing the convention as “a strong formative experience” exposing participants to high-calibre academic, industrial, regulatory, and civil-society viewpoints and to the practice of collective deliberation [10]. This is a genuine outcome at the level of participant capacity, distinct from policy or industry effects.

Downstream effects, in the sense of demonstrable take-up by public authorities or the cement industry, cannot yet be claimed. Guesnon’s own assessment is candid: “it’s only a report. In this kind of subject, every day you have a report” [10]. The convention’s influence on policy will depend on IESF’s ability to use the report and its audience-specific summaries as advocacy material through the run-up to the 2027 French presidential election cycle [10]. No formal evaluation has yet been undertaken, and no mechanism for tracking implementation has been disclosed. The strongest claims at the time of writing are output-level (a report, summaries, an alumni network) and outcome-level for participants (formative experience), rather than policy-implementation effects. IESF is planning a successor convention on agriculture for 2026 to 2027, suggesting internal judgement that this method is worth continuing [10].

Analysis and Lessons Learned

This section evaluates the convention using Graham Smith’s framework, which distinguishes four democratic goods (inclusion, considered judgement, popular control, transparency) and two institutional goods (efficiency, transferability) [11]. The working judgement that emerges from the detailed assessment below is that the convention is strongest on considered judgement and external transparency, most limited on inclusion and on the implementation stage of popular control, and conditional on efficiency and transferability. The Student Scientific Convention is best read as a hybrid: a deliberative mini-public in form, an expert-informed student assembly in composition, and a sectoral transition forum in purpose. It is not a failed citizens’ assembly but a serious instance of an emergent design adapting citizens’-convention methods to technically complex industrial sectors, and its democratic quality is best evaluated on its own terms rather than by analogy with a general-public mini-public.

Qualitative Analysis on Democratic Goods

Inclusion

Smith identifies two aspects of inclusion that must be assessed separately: presence (who is in the room) and voice (the capacity of those present to influence the output) [11]. The convention’s performance differs between the two.

On presence, the convention has procedural inclusion within a narrow demos. Random selection is genuinely applied within the eligible pool, and the hierarchical criteria lead with gender parity, giving a stronger equality-of-representation logic than a flat random draw would [2]. The sampling frame extends beyond France to EPFL Lausanne, giving the panel a limited cross-border element [6], and the eligibility band covers M1, M2, and doctoral students rather than a single year-group [2]. The limits, however, are more significant. The demos itself is restricted to postgraduate students in the sciences and engineering: workers in cement and construction, residents near cement plants, tenants and homeowners affected by construction policy, older citizens, and lower-income groups were not sampled as constituencies. Any presence of such perspectives would be incidental rather than designed into the selection. Within the eligible band, the sortition operates over a self-selected applicant pool of around 2,000 rather than over the underlying population of postgraduate scientists [10]. This means the panel is a random draw from a motivated, scientifically literate group of applicants, rather than a representative random sample of a wider population. The drop-off from 43 to 33 participants further narrows the de facto presence, and Guesnon’s diagnosis (no compensation, exhausting Paris weekends, lack of institutional recognition by home universities) suggests that those least able to bear unpaid attendance during term-time were most likely to fall out [10].

On voice, the evidence is partial. Design features that support formal equality of voice include small-group deliberation, professional facilitation by specialists in collective intelligence, the microsite’s stated commitment to “leaving the floor open to panel members” [3], participant-led speaker selection in Session 2 [10], and the fact that the recommendations were written by the participants themselves rather than redrafted by facilitators [10]. Smith warns, however, that formal equality of voice does not produce substantive equality: institutions also need to provide supports for those less skilled in formal reason-giving and to manage the norms that privilege dispassionate over narrative or experiential modes [11]. Whether such supports were active here cannot be evaluated from outside the deliberation. A further limit weighs on voice: the heavy presence of senior expert intervenants, including three named VICAT staff [1, 6], means that even where participant voice was procedurally protected, the framing of questions before the panel was shaped by intervenant voice. The design gave participants chances to speak and shape the work, but the evidence does not show whether quieter or less confident participants actually had equal influence. Taking the two aspects together, the convention performs procedural inclusion within a narrow demos and offers structural but unverified voice, improving on a closed expert committee without approximating a citizens’ assembly.

Considered Judgement

Smith breaks considered judgement into two requirements: technical knowledge of the issue under consideration, and appreciation of the perspectives of other citizens with different social positions and experiences, what Smith, drawing on Arendt, calls “enlarged mentality” [11]. The convention provides strong conditions for technical learning and more limited, indirect conditions for perspective-taking.

On technical knowledge, participants worked across five weekends with a Session 0 induction in collective intelligence and fact-based deliberation, were supplied with a curated reading list (ADEME, France Stratégie, The Shift Project, Cembureau, LC3 materials), heard expert intervenants from academia, industry, public bodies, and NGOs, accessed a dedicated online platform containing minutes and supplementary documents between sessions, and benefited from a live fact-checking layer [4, 6, 10]. The drafting weekend used a sequenced set of formats (small-group drafting, World Café, plenary integration, gallery walk-through, plenary vote) to produce 46 recommendations [10]. On perspective-taking, the paired counter-viewpoint format for Session 2 expert presentations [10] and the breadth of intervenants across academic, industrial, civil-society, and public-sector positions [6] exposed participants to competing institutional and sectoral perspectives, though this is not the same as direct exposure to affected citizens’ lived experiences.

Three limits should be acknowledged. First, the technical framing of the headline question may bound what counts as a thinkable solution, and the heavy presence of industry intervenants (notably the three named senior VICAT figures, who appeared while VICAT was also a financial supporter) creates a real risk that the range of solutions considered serious by the panel was shaped by industry framing [1, 6]. Second, the absence of a published threshold for the plenary vote weakens the claim that the final 46 recommendations are uniformly the product of considered deliberation rather than partial consensus. Third, perspective-taking inside the deliberation cannot be evaluated from outside the room. The first limit, however, is partly answered by the report’s own macro-theme structure. The recommendations lead with sobriety (reducing construction altogether) and explicitly demote CCS to a last-resort option [5]. This weakens a simple capture narrative, although it does not eliminate the possibility that industry actors shaped the range of options the panel saw as realistic. The considered-judgement claim therefore stands, with caveats around intervenant framing power, the unspecified voting threshold, and unobserved internal dynamics.

Popular Control

Smith’s framework assesses popular control across four stages of the decision-making process: problem definition, option analysis, option selection, and implementation [11]. The convention’s record across these stages is uneven, with strength at the middle stages and absence at the end.

At problem definition, control is mixed. The headline question on cement decarbonisation was set by IESF before participants were recruited, which limits problem-defining authority. But participants chose the speakers and the subjects of Session 2 [10], which is meaningful problem-definition power exercised within the running process. At option analysis, control is moderate to strong, given the diversity of intervenants, the participant-led design of Session 2, and the live fact-checking layer. At option selection, control is strong. Guesnon is explicit that “the recommendation was written by the participants” with Res Publica providing only methodological support, and the per-proposition plenary vote on the Sunday afternoon is the formal mechanism by which the panel exercised drafting authority [10]. At implementation, control is absent. The convention is advisory and its recommendations carry no binding force. There is no disclosed implementation mechanism, no formal review or evaluation procedure, and downstream influence will depend on IESF’s advocacy through the 2027 French presidential election cycle [10].

The convention therefore gives its participants real influence over problem definition, option analysis, and option selection, with the option-selection stage particularly strong, but no control at implementation. Smith treats this kind of co-governance, where citizens share upstream power but not downstream, as raising serious questions about the political weight of the output [11]. This pattern reflects a recurring limitation of advisory mini-publics, well documented by Lafont [12]. What is distinctive here is the relative strength of the option-selection stage (per-proposition vote, participant drafting, methodological-only facilitator support) against the standard weakness of implementation.

Transparency

Transparency has to be assessed in two registers. External transparency, toward the public and toward observers, is high. The IESF microsite documents the headline question, the selection criteria, the calendar, the names of intervenants, the names of the guarantors, the partners and their categorised support roles, and the curated reading list given to participants [1, 2, 4, 6, 7, 8]. The final report and the audience-specific one-pagers are downloadable, and aggregated participant statistics are published as anonymised infographics [1, 2, 5, 9]. Having CNDP-linked guarantors with a formal veto is itself a transparency feature, because it puts procedural oversight in the hands of named people outside the IESF organising team [6].

Internal transparency, toward the participants themselves, is harder to evaluate. The online platform with minutes, presentations, supplementary documents, and fact-checker annotations supports internal transparency at the level of evidence [10]. The induction in fact-based deliberation supports it at the level of method. What is less clear is whether the funding architecture was made fully explicit to participants and whether the overlap between funders and intervenants (VICAT in particular) was disclosed in real time. Guesnon frames the guarantors’ role as “validation” of speaker selection, which is a preventive rather than a reactive use of the veto right [10]. The veto itself does not appear to have been invoked or threatened in practice, which weakens its everyday role in keeping the process transparent, even if the formal power still carries symbolic weight. External transparency on this convention is genuinely strong by the standards of advisory mini-publics. Internal transparency on funding and conflicts of interest is plausible but not fully evidenced by the available material.

Efficiency

The convention is efficient as a producer of technically informed advisory output. A planned panel of fifty (43 at the first session, 33 at the last) worked through a five-month process across five weekends, with a Res Publica facilitation budget of approximately €50,000 and a total convention cost of €100,000 to €150,000, and delivered a 69-page report, 46 recommendations, six audience-specific one-pagers, and an infographic [5, 10]. By comparison with the cost and timeline of a national citizens’ assembly, this is a small-scale and contained intervention. The fractional Res Publica team (five or six concurrent missions per consultant) also indicates an organisational efficiency on the facilitator side [10].

Three qualifications matter. First, drop-off from 50 to 33 participants reduces efficiency on a per-participant basis: roughly a third of the intended deliberative capacity was lost. Second, evaluating efficiency in terms of legitimacy or policy impact is premature at the time of writing. Guesnon is candid that downstream effect cannot yet be assessed and depends on IESF’s advocacy through 2027 [10]. Third, the unpaid-participation model passes a real cost on to the participants, which is efficient for the organisers but inefficient at the system level if it filters out exactly those participants whose institutions do not absorb the time burden through informal academic recognition. The convention is therefore efficient if cost against output is the measure, and less efficient if the measure is broader legitimacy and fairness.

Transferability

The convention is readily transferable as a sectoral student-convention format and is already being treated as such by IESF. This is the second IESF student scientific convention; the first concerned hydrogen, and Guesnon reports that a successor on agriculture is under planning for 2026 to 2027 [10]. The format generalises plausibly to other technically complex transition sectors (steel, aviation, electricity grids, nuclear policy), where a similar mismatch exists between technical complexity and the inclusion capacity of a general lay citizens’ assembly.

Transferability of the democratic claims of the convention, however, is conditional rather than automatic. The conditions visible from this case are: a clear mandate, an independent professional facilitator, explicit pluralism in expert selection validated by external guarantors, a transparent funding architecture, a real fact-checking layer, and a participant support model that addresses compensation, institutional recognition, and the geographical burden of attendance. The first five conditions are met or partially met by the cement convention; the sixth is the weakest point of the case, and Guesnon identifies it himself as the main lesson [10]. Transferability of the inclusion claim depends on whether successor conventions either broaden participation beyond specialist youth or articulate a stronger defence of why a specialist youth mini-public is the right institution for a given sector. In the absence of either, the model is well transferable as a sectoral transition forum and only conditionally transferable as a democratic innovation.

See Also

1. Convention Citoyenne pour le Climat (2019 to 2020), the proximate institutional model for the case. [Participedia entry, if present, to be linked once verified.]
2. Convention Citoyenne sur la Fin de Vie (2022 to 2023), a comparable French national citizens’ convention on end-of-life policy. [Participedia entry, if present, to be linked once verified.]
3. The first IESF student scientific convention, on the uses of hydrogen, organised before the cement convention and described by Guillaume Guesnon as the operational template for the present case [10]. No Participedia entry currently exists.

References

1. IESF (2026). Convention Scientifique Étudiante sur la Décarbonation de la Construction Ciment-Béton: Accueil. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/home
2. IESF (2026). Sélection des participant·es. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/membres/selection-des-membres
3. IESF (2026). Rôle des participant·es. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/membres/quel-est-leur-role
4. IESF (2026). Ateliers de travail. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/travaux/ateliers-de-travail
5. Convention Scientifique Étudiante sur le Ciment (2026). Convention Scientifique Étudiante sur la Décarbonation de la Construction Ciment-Béton: Rapport Final. February 2026. Produced under the patronage of Jean Jouzel. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/travaux/rapport
6. IESF (2026). Le système de gouvernance. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/organisation/gouvernance
7. IESF (2026). Calendrier. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/travaux/calendrier
8. IESF (2026). Le comité de pilotage. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/organisation/pilotage
9. IESF (2026). Résultats de la Convention: rapport, one-page summaries, and infographic. Retrieved 7 May 2026 from https://conventions.iesf.fr/convention-ciment/home
10. Guesnon, G. (2026). Interview transcript. Res Publica. Interview conducted 15 May 2026 by Archbishop Sinha on MS Teams. Cleaned transcript uploaded to Participedia
11. Smith, G. (2009). Democratic Innovations: Designing Institutions for Citizen Participation. Cambridge: Cambridge University Press.
12. Lafont, C. (2015). Deliberation, participation, and democratic legitimacy: should deliberative mini-publics shape public policy? Journal of Political Philosophy, 23(1), pp. 40-63. https://doi.org/10.1111/jopp.12031

External Links

1. IESF microsite for the convention: https://conventions.iesf.fr/convention-ciment/home
2. Final report (PDF, February 2026, 69 pages): https://conventions.iesf.fr/convention-ciment/travaux/rapport
3. Res Publica firm site: https://www.respublica-conseil.fr
4. IESF (organising body): https://www.iesf.fr
5. Commission Nationale du Débat Public (CNDP, the body two of the three guarantors are drawn from): https://www.debatpublic.fr

Notes

This case study was prepared by Archbishop Sinha for PAIR 3038 Reinventing Democracy at the University of Southampton under the supervision of Dr Paolo Spada, with an interview conducted on 15 May 2026 with Guillaume Guesnon (Res Publica). The cleaned interview transcript is uploaded as a supporting file. Generative AI was used during drafting under the module’s declared rules of acceptable LLM use; the full AI declaration form is appended to the Turnitin submission of the qualitative description.

Contributor Positionality Statements

I am a third-year Politics and International Relations student at the University of Southampton. I have no professional connection to IESF, Res Publica, the cement industry, or the participants in the convention. This case study was produced as part of the PAIR 3038 Reinventing Democracy module under the supervision of Dr Paolo Spada.