Actors, activities, and forms of authority in the IPCC

Abstract Scholarship on global environmental assessments call for these organisations to become more reflexive to address challenges around participation, inclusivity of perspectives, and responsivity to the policy domains they inform. However, there has been less call for reflexivity in IPCC scholarship or closer examination of how routine concepts condition scholarly understanding by focusing on science and politics over other social dynamics. In this article, I suggest that scholarly reflexivity could advance new analytical approaches that provide practical insights for changing organisational structures. Through reflecting on my understanding of the IPCC, I develop actors, activities, and forms of authority as a new analytical framework for studying international organisations and knowledge bodies. Through its application, I describe the social order of the IPCC within and between the panel, the bureau, the technical support units, the secretariat and the authors, which is revealing of which actors, on the basis of what authority, have symbolic power over the writing of climate change. The fine-grained analysis of organisations enabled by this analytical framework reveals how dominance can and is being remade through intergovernmental relations and potentially, identifies avenues that managers of these bodies can pursue to challenge it. Video Abstract


I. Introduction
Recent studies of the Intergovernmental Panel on Climate Change (IPCC) and the Intergovernmental Policy Platform on Biodiversity and Ecosystem Services (IPBES) call for greater reflexivity in the organisation of these global environmental assessment bodies. 1 As this research indicates, organisational reflexivity is critical for bringing the epistemological and normative frameworks that underpin an organisation and its assessment activities into focus, and creating space to reconsider 'and evaluate the full range of alternative institutional design options' that could enable an organisation to change. 2 Alongside this organisational reflexivity, we also 1  establishing an IPCC Scholarship Programme with the funds received from the 2007 Nobel Peace Prize award. 11espite extensive research into developing country participation, 12 there remain few close up analyses of how asymmetries operate in the day-to-day conduct of the organisation and the production of the assessment. 13One explanation is that until recently, close up study has been inhibited by limited access to and observation of the everyday practice of putting together an assessment, although forthcoming results of ethnographic study of the AR6 are likely to change that. 14A second explanation, relates to 'the epistemological and normative frameworks that underpin' scholarship of the IPCC.Many of the central concepts that are used to study the establishment and institutionalisation of global environmental assessments have been designed to interrogate the relationship between science and politics.In the following section, I review the influence of the epistemic community model, the concept of a boundary organisation and co-production in IPCC studies. 15hrough this review, I propose that scholarly interest in the relationship between science and politics, which underpins study of knowledge bodies in International Relations (IR) and Science and Technology Studies (STS), obscures other important actors, activities, and social dynamics that structure the IPCC and its work, including the administrative role of Technical Support Units (TSUs).A more systematic approach to the study of different forms of authority operating within the organisation is necessary to identify the social order of relations structuring the daily production of IPCC assessment reports and is critical to connecting these to broader asymmetries in global economic relations.
To situate scientific and political forms of authority within and among competing social dynamics in the study of international organisations, I propose a new analytical framework that organises study according to actors, activities, and forms of authority.By identifying the different forms of authority that constitute the social order within the panel, which include scientific and political forms but are not confined to these, this approach identifies the IPCC as five distinct units and describes the social dynamics that structure relations within the Panel, Bureau, Secretariat, Technical Support Units, and Authorship of IPCC Assessment Reports (Figure 1).This framework is relevant to the study of international organisations more broadly, and contributes to recent attempts to open up the 'black boxes' of secretariats and describe the influence of administrative authority. 16Like the IPCC, all international organisations bring together different sets of actors and authorities that shape and are shaped by the activities that an organisation is mandated to undertake.Distinguishing between organisational actors and forms of authority enables a more thorough analysis of what functions as symbolic power to determine these activities and their products and could further study of the influence of global organisations.

Studying the IPCC through science and politics
The IPCC has been a central site for exploring the relationship between science and politics within IR and STS and for studying institutionalised knowledge production on global environmental action.The key concepts that have informed collective scholarly understanding of the IPCC reflect this, including the concepts of epistemic community, boundary organisation and coproduction.Scholarship applying these concepts has advanced scholarly understanding and critique of the intertwinement between science and politics in the organisation, as well as climate politics and international relations more broadly. 17However, it has also contributed to the privileging of scientific and political relations over other forms of social activity and relational dynamics in the study of collective attempts to organise and assess global environmental knowledge.Below, I review the contributions that these concepts have made to study of the IPCC before unpacking some of the oversights that result.
The epistemic community model is probably the most important concept facilitating scholarly documentation of the early origins of the IPCC.Conceptualised by Peter Haas, the model was designed to elaborate the role played by communities of experts in framing transboundary and scientifically uncertain issues and enabling the identification of shared state interests in a collective response. 18This model provided a framework for identifying and describing the formation of an international community of climate scientists during the 1980s that generated political interest in climate change and were institutionalised within the IPCC. 19Despite the epistemic community model's success, scholars have criticised key underlying assumptions, particularly around the theorised potential for science to rationalise politics. 20Thus, empirical accounts have highlighted that the model overlooks struggle and competition within and between epistemic communities, 21 and assumes that influence is unidirectional from science to politics, overlooking the self-selection of knowledge by scientists for a political audience. 22Since these early accounts, the epistemic community approach has become less popular with IPCC scholars.The model was designed to conceptualise how communities of science inform regime formation and does not have the analytical means to explore the institutionalisation of these communities within an intergovernmental body.Peter Haas himself was critical of the intergovernmental nature of the IPCC, identifying it as preventing the epistemic community from acting as theorised and enabling governments to gain control over climate science. 23hile the epistemic community model has become less analytically significant for studying the institutionalisation of science within the IPCC, the STS concept of a boundary organisation has emerged as the most popular way for characterising the organisation and exploring the 17 Rolf Lidskog and G ö ran Sundqvist, 'When does science matter?International Relations meets science and technology studies' , Global Environmental Politics, 15:1 (2014), pp.1-20. 18Peter M. Haas, 'Do regimes matter?Epistemic communities and Mediterranean pollution control' , International entanglement between science and politics shaping its products. 24Unlike the proposed separation between science and politics promoted through the epistemic community model, STS scholars start from an acceptance of the intertwinement of science and politics and an interest in empirically unpacking its effects in practice. 25In this respect, a boundary organisation is identifiable by being located between the social worlds of politics and science, by the participation of actors from both sides, and by the distinct lines of accountability to each. 26In this approach, relevant knowledge emerges from the productive collaboration between the institutions of science and politics.Empirical studies informed by the boundary organisation concept highlight the distinction or 'boundary' between scientific and political practices during the production of assessments, and illuminate how this is maintained through IPCC activities. 27From this perspective, the IPCC reflects a degree of both the scientisation of politics and the politicisation of science, but it is not tainted by its intergovernmental nature. 28ome STS scholars have questioned the applicability of the boundary organisation concept to the international context because there are more diverse networks, arrangements, and institutionalised forms of science and politics than in the domestic context where it developed. 29However, even within the approaches that seek to accommodate the international context by looking beyond the boundary to the amalgamations or hybrid forms of scientific and political practice that emerge, in describing the work undertaken to maintain a boundary and demarcate these social worlds in knowledge products, the accounts provided continue to privilege the relationship between science and politics. 30Thus, when Clark Miller tells an alternative history on the formation of the IPCC through the idiom of co-production, the narrative remains centred on the meeting of science and politics. 31t was the existing research, and the concepts that inform it, that guided my early study of the IPCC.Although I adopted the sociological tools of Pierre Bourdieu, particularly field and interest, to organise my initial study of the organisation, my focus remained centred on the scientific and political dimensions.However, after my first round of interviews with IPCC authors and co-chairs in 2010, I increasingly had the sense that I did not understand the organisation I was studying.Interviewees started to tell me about aspects of participation and organisation that I could not categorise as scientific or political, but were essential to the day-to-day administration of the IPCC and had significant effects on the distribution and imprinting of authority on the organisation and its products.From these interviews, I learned about the intricate detail and daily practice of putting together an assessment, and depending on the actor's role in the organisation, the access and specific forms of authority this gave them in and over the report.As I began to piece together this practice for producing climate change assessments, the uneven distribution of authority for actors to shape its products became apparent.Through this research, I learned about a group of actors that had barely been mentioned in previous studies -the Technical Support Units (TSUs) -and the unrivalled proximity they had to the assessment as well as those managing and authoring it.When observing these units more closely, it became possible to discern how these administrative bodies, hosted alongside the developed country chairs of the Working Group reports, contributed to some countries dominance in and over the production of the assessments.I was beginning to discern a social order in the IPCC's assessment practice, that is, the particular properties that were recognised and which distinguished actors as authoritative in and over the organisation.This internal social order, which animates relations within the IPCC and its assessment practice, reflects broader global distributions of economic, social, and political resources.In the following section, I describe the analytical framework informed by the sociology of Pierre Bourdieu, which emerged from this study of the IPCC and which makes it possible to contextualise science and politics within and among other social dynamics in intergovernmental expert bodies like the IPCC.

The analytical framework: Actors, activities and forms of authority
Bourdieu studied the order of delimited social universes -identifying the distinct features of these and describing the logic or economy that underpin and animate them.He developed analytical tools, including field and habitus, that systematised study of these social realms, and which he fine-tuned and applied through detailed study of, for example, the academic universe and cultural tastes in France. 32Informed through the notion of field and interest, I initially approached the IPCC as an organisation that brought together two distinct fields of practice, the scientific and the political.However, through interviews and observation, I began to discern other ordering forces and economies of practice structuring the assessment and relations within its conduct.Eventually, I came to distinguish and separate out groups of actors -or the units of the organisation -according to the distinct set of activities actors undertake and the related authority these activities enable over the organisation and the assessment of climate knowledge.
This simple framework of actors, activities, and forms of authority opens up analysis of organisations to all those with a role in its conduct and products, without privileging or predetermining particular actors and forms of power prior to empirical analysis.The approach is informed by Bourdieu's notions of field and interest because these concepts informed how I distinguished between sets of actors; attuning me to the specific interests and activities actors undertook as a means to group them, as well as ensuring that the study situated the IPCC within the broader field of transnational action on climate change. 33However, the actors, activities, and forms of authority framework is tailored to the study of international organisations specifically, because it recognises that each body brings together multiple fields of professionals as required to fulfil the organisation's mandate.Alongside the practical necessity of completing the organisation's task, there is struggle for recognition and new forms of authority emerge in the conduct and realisation of organisational products, as identified in other Bourdieu-informed analyses. 34Figure 1 identifies the distinct units within the IPCC as the secretariat, the panel, the bureau, the TSUs, and the authors and also identifies the porosity -connectivity and flow of people and information -between these.In order to identify the properties distinguishing actors within the IPCC, to map the social order and to explore the relationship between the distribution of resources within the organisation and the global distribution of resources, I retained Bourdieu's concept of capital in the analysis.Capital makes it possible to identify and unpack what constitutes authority within each unit of the IPCC -the economic, cultural, and social resources that govern an actor's access to, location within, and influence over the organisation and its assessment practice.Although the properties and their value are relative to the social space, Bourdieu identified three principal types: (1) economic capital -material wealth and financial assets; (2) cultural capital -knowledge, skills, technical qualifications, and titles; (3) social capital -the resources accrued by virtue of membership in a given group. 35Cultural capital is particularly important because it helps to illuminate the specificity of properties and values in an organisation and the 'embodied' form that these takes.Cultural capital is accrued through an actor's life journey -the internalisation (in thought) and embodiment 35   (through practice) of their sociocultural, educational, and professional background and experiences.The greatest barrier to acquiring this cultural embodiment is access, time and resources, which investment in any social universe requires. 36In the context of the IPCC, embodied forms of cultural capital, such as sounding right or presenting arguments in what is recognised as the appropriate language and manner, can be the hardest to acquire and can result in lasting asymmetries.
The ensuing analysis describes the activities of each unit of the IPCC and identifies the forms of authority that have emerged and shape relations within that space, the key elements of which are summarised in accompanying tables (see Tables 1, 2, 4, 6 and 7).The account identifies the most valued forms of authority within the IPCC as: (1) scientific credentials (scientific expertise and contribution to science as measured by institutional affiliations, publications, international networks, etc.); and (2) knowledge of the assessment process in practice (gained through years of experience and proximity to the report's construction).These forms of capital are the basis of symbolic power within the IPCC, which is a power to have an effect on the conduct of the organisation and its products, and ultimately, over how climate change is written. 37The following account describes how these forms of authority have emerged as the most valued properties within the organisation, their distribution and relation to economic capital, and the struggle they engender within and between units to contest or acquire them.Taking this approach allows us to describe the social order of the IPCC, to identify asymmetries in participation and to begin to unpack the basis of these and its effects.

The units of the IPCC
The account of the IPCC provided is informed by 12 years of study, including 41 semi-structured interviews between 2010-11 and 2019, during the fifth and sixth assessment cycles respectively, as well as ongoing informal conversations and follow up emails.Wherever possible, I conduct interviews at participant's place of work, to get insight into the fields of professional activity that qualify them to participate in the process.In 2010, I visited the technical support unit for WG II at Stanford University, California and observed the 32 nd plenary of the IPCC in Busan, South Korea.I started a second round of interviewing and observation in 2019 during the sixth assessment cycle, including visiting WGIII technical support unit at Imperial College London and observing the approval of the Summary for Policymakers for WGII and WGIII in February and March 2022.Alongside this, I have individually and collaboratively collected extensive data on IPCC authors and bureau members, including documenting their participation in the assessment, institutional, and disciplinary affiliations, and a survey of AR5 WGIII authors in 2016. 38This data informs every aspect of the account provided, which is supported by IPCC information gathering, documentation and reports.

The Panel
The Panel is the IPCC's member governments that meet once or twice a year in plenary session.Membership to the panel is open to all member countries of WMO and UNEP and there are currently 195 members. 39However, only half regularly send representatives to plenary and for reasons unpacked below, about one quarter could be described as engaged in panel activities.The panel has a role in each stage of the IPCC's assessment practice and as such, governments have considerable influence over the organisation and its work (see Table 1).Although member governments are not directly involved in the authorship, governments approve the report outline, nominate authors, elect the bureau, review draft reports, and accept and approve the final products.Financially, the IPCC is dependent on donations, and all IPCC expenditure is agreed by the panel, which gives governments the final decision over the organisation's continuation, its assessment activities, and the expert meetings and workshops supporting these.The majority of delegates reside within meteorological offices or environment/climate ministries, and between plenary meetings are engaged intermittently in IPCC work as the national focal point, overseeing the national process for identifying and nominating authors and managing the government review of draft reports. 41In this role and capacity, they may feed into or be a member of the national delegation to the UNFCCC, particularly on items relating to the Subsidiary Body for Scientific and Technical Advice (SBSTA).To become a meaningful member of the panel, governments must invest the economic and human resources necessary to fulfil this broad range of activities, and through the conduct of these, governments can gain authority in the organisation and influence over the direction and content of the report.This includes, for example, through review comments requiring consideration and revisions by the authors, 42 and through interventions, textual revisions, and red lines during the approval of the outline and summary for policymakers. 43The symbolic power to shape the organisation, its assessment practice, and the wording of key findings is not equally distributed between member governments.
To unpack the asymmetry in influence, we need to take a closer look at the forms of capital that constitute an authoritative member of the panel.To understand the culture of the panel, and 41  what is valued within and by its membership, it is necessary to briefly revisit the IPCC's establishment.The IPCC's FAR was originally envisioned as an exercise for a small group of core members and although all WMO and UNEP members were invited to the first plenary, only 28 countries sent delegates. 44The current modus operandi and culture of the IPCC was written by early leading members.As documented by John Zillman, the Australian delegate to the IPCC during its first session and a long-standing bureau member, Australian 'emphasis on the importance of objectivity, the involvement of subject matter experts and the use of peer review procedures during its interventions at the First Session, significantly shaped the character of the IPCC in its early years' , and it was on US insistence that peer review was incorporated into the assessment practice. 45he acceptance of scientific principles without debate 46 indicates the shared nature of scientific practice and corresponding cultural values within and between the lead countries.This embodied working style was also instilled in panel proceedings, as summarised in the first chairman's address to the panel.In this statement, Bert Bolin urges the panel to ground decision-making in scientific and technical arguments: He reminded the panel that the IPCC is not a negotiating body … He hoped there would not be much need for decision-making by voting in the IPCC … In this process, it was most important that the developing countries were given adequate opportunity to take part because the process then led to mutual learning, benefitting not only the developing countries but also the developed countries … So orderly conduct of business in a free and scientific manner with participation by all or as many as possible should be the IPCC working mode. 47is statement designates a style of conduct and appropriate manner that privileges scientific and technical forms of knowledge and argumentation, and thus the panel members that embody these modes of cultural capital, which remain an important dimension of symbolic power today.These forms of cultural capital can be gained over time and through investment in the panel and its activities and through which IPCC processes and procedures are learned.Members' contribution to panel activities and duties enable actors to distinguish themselves -to become recognised as constructive participants.The ability to craft acceptable language, to convene working groups, to co-facilitate contact groups and to broker agreement are some of the valued qualities that distinguish members of the panel and enable them to have their views and interventions on the organisation and its texts heard and accommodated. 48ften overlooked in the respect for certain delegates is the time and resources that is required to become recognised, which in turn is dependent on national investment in IPCC participation.Economic capital is the most significant factor in accounting for why less than half of IPCC member governments appear as active participants in plenary proceedings.The IPCC recognised the importance of developing country participation early on in the organisation's establishment and has funded the travel of at least one national delegate from developing and economy in transition countries since 1988 through the trust fund. 49However, having a presence at a meeting is not the same as being able to meaningfully participate in that meeting.Thus, while the trust fund offers the potential for some delegates, particularly if there is consistency over time, to become active members of the panel and through this participation accrue cultural capital, vast asymmetries remain in national capacities to invest the necessary time and human resources to realise symbolically powerful membership.This asymmetry in the capacity to become a powerful member becomes even starker when the role of the bureau and hosting TSUs is brought into focus.

The bureau
The IPCC bureau oversees and manages the production of IPCC Assessment Reports, and in this function is an intermediary between the member governments authorising the assessment and the authors.To increase geographical representation, the bureau has expanded with each assessment round, with 34 members for the AR6.These include the IPCC chair, three vice chairs, two co-chairs and seven or eight vice chairs for each WG. 50Bureau members attend annual plenary meetings and meet as a bureau twice a year, including prior to plenary to forge common positions before proceedings.The three WG Bureaux select authors, guide the assessment, ensure consistency across chapters, act as review editors, chair the approval of the outline and final summary for policymakers and disseminate its key findings (see Table 2).The bureau's influence over panel decision-making rests both on recognition of scientific authority, which remains one of the most valuable forms of cultural capital as instilled by the leading members described above, and their management of the assessment.However, this scientific authority can be challenged by the political authority of member governments during plenary and approval proceedings. 51he developed country WG co-chairs are the most authoritative actors in the assessment's production.Recognised for a combination of scientific contribution and previous IPCC and/or assessment experience (Table 2), the WG co-chairs are responsible for the management of IPCC assessment reports.Officially working 50 per cent on the IPCC process, the host government provides co-chairs with technical and administrative support in the form of a Technical Support Unit (TSU), which are housed in or near the co-chairs institution.This technical support enables the developed country co-chair to lead at every stage of the report's production, from drafting the outline to orchestrating the final government approval and disseminating its key findings.The WG vice chairman assist the co-chairs in this role, and the degree to which developing country co-chairs and vice chairs can imprint on the process depends on the extent they embody organisational culture and are able to invest in IPCC activities, with considerable variation noted between bureau members during interviews.
Bureau members are supported in IPCC activities by their government or the IPCC trust fund and have professional responsibilities outside of the IPCC, the majority working within research institutes, government departments, and/or international organisations.The pressure of time and lack of financial resources significantly constrains developing country bureau members.Although travel expenses are covered by the trust fund, and the IPCC provides developing country co-chairs with additional funding to cover staffing or equipment, this is limited in comparison with the resources and support available to the developed country co-chair.The economic capital structuring developing country capacity to invest in the IPCC process is augmented by the 49  perceptions of some bureau members as being political appointees, 52 not adequately qualified for the task. 53These judgements can overlook the economic resources necessary for a country to 52  (2) accrue the cultural capital to meaningfully impact the assessment; and (3) have the technical and administrative support to ensure their concerns and representations are incorporated in draft outlines, reports, and summaries.Government investment in bureau membership does not only benefit the bureau member, host governments gain valuable forms of social and cultural capital in return.Governments with an elected bureau member can attend bureau meetings, which increases their contact with key actors and provides them with greater insight into the assessment's progression.Knowledge of the assessment process is one of the most valued sources of cultural capital in the IPCC.As such, having a bureau member translates into symbolic power during plenaries and report approval sessions, when delegates can draw on this knowledge to make informed interventions and authoritative reasons for altering proposed text. 54As Table 3 indicates, those countries intervening most in proceedings at one IPCC plenary meeting all had bureau members.This relationship is strongest where a developed country co-chairs the WG and hosts the TSU, with these governments intervening most frequently during the session.
The significance of bureau membership is also evidenced by the political manoeuvring prior to bureau elections.For example, during the AR5 elections, a researcher observing proceedings suggests that delegates arrived at the plenary with 'guidance from their ministries of foreign affairs on what countries' candidates to support' . 55Wikileaks further document this, describing US efforts to ensure that the US candidate (Dr Chris Fields) was elected as WG II co-chair and that the Iranian candidate (Dr Mostafa Jafari) was blocked.According to these accounts, the US contacted the IPCC chair, the Australian, Brazilian, Malian, German, Netherlands, and UK delegations prior to the elections and gave assurances that it would consider their election outcome preferences. 56

The Technical Support Units (TSU)
Although WG co-chairs are responsible for overseeing the production and approval of the assessment, they could not fulfil this role without organisational, administrative, and technical support, as housed within the TSU.The TSUs play a significant role at every stage of the assessments production: preparing and administering the timeline for completion; identifying and processing the selection of authors; managing the authors in writing the report; editing, harmonising, and polishing submitted material; and compiling the finished product for panel approval and publication (Table 5).TSU staff are the only IPCC actors that work full time on the report, have the most direct contact with authors and material assessed, and the TSU heads or science leads have intellectual influence over the assessment practice and its content.
The WG TSUs are not homogenous units, and although a newly elected chair and appointed staff seek input and advice from outgoing TSUs, the organisation, style of work, and distribution of authority develop over the course of the assessment as shaped by the WG chair, TSU head and the host country.They are funded by the government of the developed country co-chair and are generally hosted within the co-chair's institution, such as the university, the met office or the environment agency.To date there have been seven countries that have hosted the TSU, with both the US and UK having WG chairmanship for five out of six assessments (Table 4).These units have grown over time to keep pace with increasing author numbers and volumes of knowledge, and today they have between five and fifteen members of staff.Nearly all staff will be new hires, as there are only a few that have served on multiple TSU teams and the demands of TSU head make it difficult to repeat. 57hile the TSUs are set up to assist the developed and developing country co-chairs, this assistance is uneven.The TSU team regularly update and seek the input of the developing country co-chair, but their main focus is on meeting the requirements of the chair they work alongside. 58his means that there are considerable disparities in the distribution of social and cultural capital between WG co-chairs, which impact the extent to which a developing country co-chair can invest in the process and imprint on the final product.
One or two members of the TSU team are hired for their scientific credentials and experience of previous assessment exercises.It is the responsibility of the TSU head or science lead to implement and manage the production of the assessment as envisioned by the WG chair and approved by the panel. 59The importance of the task is reflected in the credentials of those hired, many of whom are established within a field of science relevant to the WG and have previously contributed as an IPCC author, bureau member, or as a national delegate. 60The combined expertise of the WG cochair and TSU head is critical for gaining the investment of the authors in this time consuming process.While the scientific credentials of TSU staff distinguish it from the secretariat, it is not the unit's main source of cultural capital.
The WG TSUs make an IPCC assessment report possible, binding the assessment practiceand the actors that constitute it -together through their day-to-day activities.The TSU's symbolic power within the IPCC lies in the organisation's dependence on this unit for achieving its mandated task and its unrivalled access to the WG authors and the assessment under construction.The TSU introduces authors to the IPCC and is their main point of contact throughout the assessment.Through emails and author meetings the TSU staff instil in authors the appropriate procedures and values for conducting the assessment, and have the editorial power to ensure these are adhered to in the compilation of chapters.The TSU's management of the report's construction also gives it unmatched technical knowledge of the process and progress of the report, which makes the TSU an important contact point for secretariat, panel, and bureau members for informed position taking and decision-making prior to and during bureau and plenary proceedings (Table 5).This makes establishing and maintaining links to the TSUs a vital source of social capital and avenue for cultural capital, sources of capital that are most readily available to the member governments hosting these units (see Table 1).

The Secretariat
The Secretariat is the organisational centre of the IPCC and its only permanent body.Despite its permanence and symbolism as the focal point of the organisation, the secretariat is an enabler rather than a direct contributor to the IPCC's assessment practice.The secretariat plays an active role at the start of the assessment cycle, particularly in assisting the chair and panel in formulating the work programme, as a conduit of institutional memory, and instilling IPCC values and procedures in the incoming bureau members and TSUs.However, the secretariats direct involvement in the assessment report's production decreases with the formation of the Working Group (WG) TSUs.
The secretariat is an important actor in plenary and bureau meetings: presenting the agenda and reports of previous sessions, providing support to the chair, introducing budgetary matters, responding to government enquiries, and generally ensuring the orderliness of proceedings (Table 6).Between these events the secretariat is regularly in contact with national focal points and bureau members and once the assessment is under way information flows daily between the secretariat and WG TSUs.Outside of the organisation, the secretariat promotes the IPCC's work to relevant UN bodies and seeks regular input from these and other stakeholders to ensure the continued relevance of assessment products as well as organising outreach activities on publication.
Although the secretariat is situated within WMO headquarters in Geneva and its roughly halfdozen staff are employees of the UN, the unit is answerable to member governments of the IPCC panel and it is governments that decide the size and remit of the secretariat. 61In recent years, the authority of the secretariat has been challenged and different factors and events account for this.The distance between the secretariat and the production of IPCC assessment reports has increased 60 Interviews with TSU, 25 July 2010; 5 October 2010.For example, Pauline Midgley was head of WG I TSU for the AR5.
Pauline has a PhD in atmospheric chemistry and contributed to the science of ozone depletion, publishing articles and participating in international scientific assessments on the effects of CFCs.Prior to her appointment as TSU head, Pauline provided scientific support to the German Federal Ministry of Research, and from 2006 she headed the German IPCC Coordination Office. 61The staffing of the secretariat has been reviewed and expanded several times with the strengthening of TSUs.As studies of the bureaucratic authority of secretariats indicate, secretariat staff possess a wealth of experience and knowledge, including historical knowledge of the organisation and its policies and procedures. 62This intellectual capital -a form of cultural capital -translates into authority in and between plenary and bureau proceedings when focal points and bureau members seek information and advice from the secretariat to inform decision-making.While this knowledge is a valuable form of capital within the IPCC, as has been identified, the most valued form of cultural capital is scientific know-how and knowledge of the assessment process in practice, and the secretariat no longer houses science staff and has minimal direct involvement in the day-to-day construction of the assessment reports compared to the TSUs.Thus, while the secretariat is the principle point of contact for members of the IPCC and observer organisations, 63 the secretariat cannot provide participants with the same detailed knowledge on the progression of the report as TSU staff.
Between the AR4 (2007) and AR5 (2014), the secretary sought to stem its loss of authority by increasing the scientific capacity and its proximity to the IPCC's assessment practice.However, this brought the secretariat in conflict with TSU staff and led to further erosion of its authority.In 2008, the panel set up a task group to undertake a review of the secretariat's staffing requirements, as the unit was widely regarded as overstretched. 64The secretary at the time, Dr Renate Christ, proposed adding two scientific officers to the staff and identified an expanded role for the secretariat in providing greater technical and administrative support on issues and themes that cut across the three 62  working groups and in assessing the grey literature used in reports. 65The task group dismissed the secretary's request for additional science staff, indicating that: the working group and task force TSUs are primarily responsible for the preparation of the assessment reports and methodologies and provide the in-house scientific expertise of the IPCC.IPCC interviewees were strongly of the view that the Secretariat should continue to focus on corporate and administrative issues, concerned with the quality and efficiency of processes rather than with their substance. 66e secretariat's position was further undermined by the media attention surrounding errors over the Himalayan glacier in the AR4 and the resulting InterAcademcy Review (IAC), which held the secretariat along with the chairman responsible for the IPCC's 'sluggish response' . 67However, in responding to this criticism the secretariat has secured an organisational niche for itself in managing external representation of the IPCC through communication and media relations. 68This extends to providing bureau members with training and preparation for media appearances.This demonstrates how units can adapt to changing circumstances to ensure their continued relevance.It also highlights that while scientific expertise and proximity to the assessment are the most valued properties, including within the administration of the organisation, they are not the only activities and forms of authority that matter.

The authors
IPCC authors are experts that have nominated themselves or been nominated by their government or an international organisation and selected by the WG bureaux and TSU staff to assess and review the material relevant to their expertise and the government-approved outline.As with panel and bureau members, authoring the assessment is not a full time job and authors are not paid by the IPCC.Most nominees work as knowledge producers and reside within universities, research institutes, government agencies, and international governmental and non-governmental organisations.It is from these sites that they contribute to climate change knowledge production, and it is this contribution that constitutes actors as climate experts and qualifies them to participate in the IPCC's assessment practice.For most authors, the IPCC is a series of author meetings, email exchanges, and intense periods of reviewing, compiling, assessing, and writing to meet the deadlines of the drafting cycle (Table 7).These activities, authors' experience of the organisation, and the forms of cultural capital ordering relations within the WGs and chapter teams, distinguish authors from other units of the organisation.The panel, bureau, TSUs, and secretariat have a shared experience and practice of the IPCC through plenary and bureau meetings.Running for over thirty years, an organisational culture has developed as described above.Authors do not attend regular IPCC plenary meetings and thus have not internalised this shared history and way of knowing and doing the IPCC.While the author's conduct of the assessment is increasingly governed by the codification of the IPCC's assessment practice, research continues to provide evidence that the order of relations within chapter teams and authors' evaluation of climate change knowledge remain governed by scientific conventions. 69Exploring the dynamic between the IPCC's attempts to broaden geographical 65  representation and the attitudes and perceptions of authors towards disciplines of knowledge and developing country members identifies important dynamics that shape the social order of chapter teams.Scholarship on IPCC authorship identifies the forms of scientific authority ordering relations within chapter teams.IPCC assessments are recognised as central platforms for climate researchers to enhance their scientific credentials and the social and political relevance of their work. 70This scholarship reveals perceptions around disciplinary and methodological hierarchies, with some forms of knowledge perceived as more scientific than others, for example, long-standing attitudes of the importance of modelling, the physical sciences over the biological sciences or economics and engineering over broader social science inclusion, attitudes that are mirrored in the authorship and knowledge contained within the assessments. 71Social Network Analysis and survey data identify scientific credentials (publication record, institutional affiliation, and position within the social network) alongside knowledge of the IPCC assessment through prior experience as the most valuable forms of cultural capital within chapter teams. 72The effect of these forms of cultural capital and its distribution shapes which authors have the symbolic power to influence the construction of knowledge in the chapter and its key findings in the SPM.
Over time, the scientific way of conducting the assessment and ordering relations within chapter teams has been confronted and channelled through organisational imperatives to increase geographical and gender representation.Thus, while author selection and scientific assessment in the FAR (1990) and SAR (1996) were largely governed by scientific conventions for recognising authoritative actors and knowledge, these appointment procedures and authorship roles are now codified in the principles governing IPCC work. 73Through this codification, the organisation ensured that leadership of the assessments, both at the WG and chapter level, was shared between developed and developing countries.Despite increased developing country participation with each assessment cycle, barriers remain for the organisation to ensure that this equates with impactful contribution to the assessment.Historically, this has included long-standing misperceptions around developing country authors' scientific authority and contribution to authorship.Developing country contribution to the labour of the assessment was remarked on during interviews and informal conversations.Examples of this perspective were also present in the InterAcademy questionnaire undertaken in 2010 through comments suggesting that not all appointed authors are adequately qualified for the task and/or equally participated in the chapter labour. 74Perceptions of the apparent scientific authority of developing country authors, structure the space to contribute, frequently intersecting with gender, 75 as one participant describes in a survey by Miriam Gay-Antaki and Diana Liverman: The only reason that I could have felt not required at all in the team could be that I am an African woman.I have very good command of English, I am as qualified as others, I am confident also -but I was never listened to. 76cial perceptions around scientific authority also overlook structural inequalities and the way in which economic capital conditions author contributions.Just as the acceptance rate for developing country scientists in international journals is lower due to reduced access to current literature and methodologies; limited access to international journals, slow and costly Internet access and even poor telephone connections impede developing country authors' ability to identify and assess relevant literature. 77Those leading the process have become aware of these barriers, and for the first time in the AR4 the WG I TSU reached an agreement with several publishing houses to pro-particular ways of knowing and representing climate change, formed in particular geographic locations through particular, historically constituted, scientific methods and conventions, dominate how climate change is constructed for the international community.This scientific habitus can overlook the economic capital that underpins the making of scientific expertise, including its own, and thus the barriers that developing country authors experience in becoming recognised as authoritative climate knowledge holders. 80Examining whether and to what extent these misperceptions continued to impact the authorship of the AR6 will be an important area for forthcoming studies.

II. Conclusion
I started this article by indicating that reflexive scholarship may help to identify how shared interest in the relationship between science and politics overlooks other important actors and social dynamics influencing the daily organisation and resulting products of global environmental assessments.In order to address this, the article outlines and applies a new analytical framework and uses this to provide a detailed description of the IPCC and the order of social relations within and between the different units of the organisation.The aim of this framework is to facilitate a systematic opening up of an intergovernmental body and assessment practice like the IPCC by identifying all actors, activities, and forms of authority that constitute its organisation and its products.Incorporating Bourdieu's notion of capital into the framework makes it possible to explore the relationship between activities undertaken and the authority these enable in the organisation and over the assessment, and to connect this symbolic power to write climate change to the global distribution of economic resources.The description of participation in the panel brings into focus the cultural foundations of the organisation -the privileging of scientific and technical forms of reasoning and its embodied mannerisms.Identifying and understanding these privileged forms of authority matter because they have tangible effects on which co-chair's vision for the next IPCC assessment of climate change is brought to life, which author's views imprint on the report, and which member government's proposed revisions to the summary for policymakers are accepted.However, this explanation is insufficient unless contextualised in all the activities undertaken by the different units of the organisation that constitute the IPCC's assessment practice and in turn, the sustained national economic investment in participation that is required to undertake these.When the activities of each unit of the IPCC are accounted for it becomes possible to discern how bureau membership and hosting a technical support unit -both resource intensive -provide the host country with one of the most valued forms of cultural capital within the IPCC: knowledge of the assessment process in practice.This also reveals the close coupling and reproductive force of cultural dominance and the distribution of global economic resources and how this order of relations is potentially maintained and sustained through the day-to-day organisation, assessment, and writing of climate change.This vast and reproductive challenge means that the IPCC needs all the help from the scholarly community it can get to identify dominance and avenues for countering it.
This approach to the study of intergovernmental organisations -disaggregating them according to the actors, activities, and forms of authority that constitute them -is also relevant to the increased interest and study of international organisations, bureaucracies, and treaty secretariats in recent years.As with the IPCC, these organisations are composed of complex sets of actors with diverse forms of authority over how their mandated tasks are undertaken.This approach ensures that the 80 Raewyn Connell, Rebecca Pearse, Fran Collyer, João Marcelo Maia, and Robert Morrell, 'Negotiating with the North: How Southern-tier intellectual workers deal with the global economy of knowledge' , The Sociological Review, 66:1 (2018), pp.41-57; Ho-Lem, Zerriffi, and Kandlikar, 'Who participates'; Sylvia Karlsson, Tanja Srebotnjak, and Patricia Gonzales, 'Understanding the North-South knowledge divide and its implications for policy: A quantitative analysis of the generation of scientific knowledge in the environmental sciences' , Environmental Science & Policy, 10:7 (2007), pp.668-84; Maya Pasgaard and Niels Strange, study of any organisation is situated within the global distribution of resources and that the impact and reproduction of this economic order can be traced on organisational products.

Table 1 .
40A summary of the activities and forms of authority of the panel.Main source of authority in bold.
42 Jean P. Palutikof et al., 'Enhancing the review process in global environmental assessments: The case of the IPCC' , Environmental Science & Policy, 139 (2023), pp.118-29.43From observation of plenary and approval sessions.

Table 2 .
Shardul Agrawala, 'Structural and process history of the Intergovernmental Panel on Climate Change' , Climatic Change, A summary of the activities and forms of authority of the bureau.Main source of authority in bold.

Table 3 .
Top ten countries by frequency and total time of interventions at the 32 nd Plenary Session of the IPCC, hosted in South Korea, October 2010 (data collected by author).a Only interventions from the floor counted (excl.presentations by delegates or bureau members chairing contact groups).Table first published in Hughes, 'Governments', in De Pryck and Hulme (eds), A Critical Assessment of the Intergovernmental Panel on Climate Change, pp.79-87. a

Table 4 .
Countries that have hosted TSUs by WG and assessment round.

Table 5 .
A summary of the activities and forms of authority of the TSU.Main source of authority in bold.

Table 6 .
A summary of the activities and forms of authority of the secretariat.Main source of authority in bold.