To what extent are land resource managers preparing for high-end climate change in Scotland?
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We explore the individual and institutional conditions and the climate information used to underpin decision-making for adaptation to high-end climate change (HECC) scenarios in a land resource management context. HECC refers to extreme projections with global annual temperature increases of over 4 °C. We analyse whether HECC scenarios are used in the adaptation decision-making of stakeholders who will tackle the potential problem. We also explore whether the adaptation actions being considered are pertinent only to future climate change or whether other drivers and information types are used in decision-making (including non-climate drivers). We also address the role of knowledge uncertainty in adaptation decision-making. Decision-makers perceive HECC as having a low probability of occurrence and so they do not directly account for HECC within existing actions to address climate change. Such actions focus on incremental rather than transformative solutions in which non-climate drivers are at least as important, and in many cases more important, than climate change alone. This reflects the need to accommodate multiple concerns and low risk options (i.e. incremental change). Uncertainty in climate change information is not a significant barrier to decision-making and stakeholders indicated little need for more climate information in support of adaptation decision-making. There is, however, an identified need for more information about the implications of particular sectoral and cross-sectoral impacts under HECC scenarios. The outcomes of this study provide evidence to assist in contextualising climate change information by creating usable, cross-sectoral, decision-centred information.
KeywordsClimate Change Collective Action Climate Change Impact Climate Change Adaptation Interview Participant
The committed warming due to the level of greenhouse gases (GHG) currently in the Earth’s atmosphere suggests that achieving the target of the Paris Agreement to limit global temperature increases to 1.5 °C is an ambitious one, and reaching it is not a foregone conclusion. Global emissions of GHG are currently tracking on a high-end trajectory, viz. higher than the most fossil-fuel intensive emissions scenarios developed by the Intergovernmental Panel on Climate Change (IPCC; Jordan et al. 2013; IPCC (WGIII) 2014). Good risk management involves preparing for the worst, but hoping for the best. The reality of the worst is that the world is currently headed for an average increase in temperature of 4 °C and beyond (Gasser et al. 2015; Stafford Smith et al. 2011). The current high-end trajectory would lead to severe climate change impacts, as reported for sea-level rise (Golledge et al. 2015), flood risk (Alfieri et al. 2015) and water scarcity (Schewe et al. 2014) among others. Impacts and adaptation to high-end climate change (HECC) are currently a key focus of European Union (EU) project funding, with three complementary projects that focus on regional and local impacts and adaptation across a range of land, water and coastal ecosystems (High-end climate research EU website 2016). While intergovernmental emphasis is currently on mitigation of emissions to reach the 1.5 °C target, these EU projects recognise that good risk management involves preparing for higher levels of adaptation than we hope are necessary.
How such adaptation occurs will depend on individual and collective decision-making (Adger et al. 2005), and so understanding the conditions influencing decision-makers is a step towards producing information that supports their capacity to adapt to climate change. The purpose of the work presented here is to provide insight into stakeholders’ knowledge and decision-making in regard to HECC scenarios based on qualitative evidence from a land resource management case study. The goal is to understand the conditions (challenges) and the types of climate change information that influence land resource managers when making decisions about adapting to climate change. Improving understanding of this bottom-up perspective can then inform the development of better contextualised adaptation strategies that account for current conditions.
The decision-making of individuals and groups is influenced or constrained by many factors which give them different perspectives on the goals and objectives of adaptation (Poteete and Ostrom 2004; Adger et al. 2009; Murray-Rust et al. 2014). Factors that influence individual decision-makers’ adaptation decision-making include cognitive biases and judgement heuristics, which have been shown to affect people’s perceived adaptive capacity irrationally and also their risk perception (Grothmann and Patt 2005; Adger et al. 2009). One such bias is the “optimistic bias” or “unrealistic optimism” (Grothmann and Patt 2005; Weinstein 1980). This bias results in people perceiving their own risk of being affected by a particular threat to be smaller than the average risk. A group’s adaptation decision-making at the policy level is constrained by issues including inertia, cultures of risk denial and other phenomena (Adger et al. 2009). Factors that have been shown to limit adaptation at the organisation level include the following: lack of adequate information about climate change impacts, lack of resources at the local authority level, conflicting interests, negative impacts from existing policies at lower levels of governance, and the difficulty in assessing and implementing adaptation options (Adger et al. 2009; Berkhout et al. 2006; Crabbé and Robin 2006; Poteete and Ostrom 2004).
An individual’s or group’s adaptation decision-making is also constrained by the institutional context within which they operate, including, for example, regulatory structures, property rights and social norms (Adger et al. 2005; Adger et al. 2009; Powell and DiMaggio 2012). Institutions play a critical role in influencing adaptation decision-making in the land resource management sector through both policy instruments and direct interventions (Murray-Rust et al. 2014). Examples relevant to this research include, but are not limited to, the United Nations Framework Convention on Climate Change, the European Union’s Common Agricultural Policy and the Scottish Government’s Climate Change Adaptation Programme (Scottish Government 2013).
Collective action describes much of the group decision-making within the land resource management sector (Adger 2010). It is argued that the quality of such formal institutions as the state influences the capacity of groups to act in their collective interest (Ostrom 1990); this is the case for climate change adaptation. To adapt to climate change, state intervention and planning is necessary, but it is also necessary for individuals and groups to engage in collective action (Adger 2010). Collective action requires networks of actors and flows of information between those actors to enable decision-making (Adger 2010). Such networks are generally referred to as social capital (Adger 2010). The theory of social capital describes how individuals act towards other actors within the society to achieve their own and the collective good (Adger 2010). The state can act as a facilitator of social capital for climate change adaptation, for example through providing a physical or regulatory infrastructure that resonates with social norms (Adger 2010). Factors that have been shown to facilitate collective action for adaptation include the following: the rigidity or fluidity of the institutional context, the characteristics of the decision-making group, technology, how management benefits are distributed, and the actions of government and external actors, including regulation and economic incentives (Adger et al. 2009; Adger 2010; Poteete and Ostrom 2004).
Decision-centred adaptation decision-making puts climate into perspective within the applicable decision context and considers all of the contributing factors, for example economic priorities, environmental issues, political and social factors, demographics and regulation. In contrast, the climate-centred framework assumes that decisions are most importantly influenced by climate projections, and does not recognise that climate is only one factor, of which many others also influence the adaptation decision to be made. The need to understand and work within stakeholders’ existing decision-making processes is well established in the literature (e.g. Mase and Prokopy 2014; Howden and Jacobs 2015). Although the decision-centred framework is increasingly acknowledged as resulting in better decision-making than the climate-centred framework (e.g. Dessai et al. 2009; Daron et al. 2015), climate change adaptation policy continues to be dominated by a climate-centred approach (Smith 2015).
The continuance of the climate-centred approach is in part influenced by the “uncertainty fallacy” (Lemos and Rood 2010)—that is, the “belief that the systematic reduction of uncertainty in climate projections is required in order for the projections to be used by decision-makers”. But this has been shown to be incorrect through examples that demonstrate that decision-makers are adept at making adaptation decisions on the basis of incomplete or uncertain information (Tribbia and Moser 2008; Bryson et al. 2010; Heckbert et al. 2010; Street and Nilsson 2014; Lourenço et al. 2014). Such uncertainty does not prevent decisions from being made (Bryson et al. 2010). Therefore, the presence of uncertainties in future climate information should not derail the decision process (Heckbert et al. 2010)—but rather should increase the focus on robust, decision-centred decision-making.
1.2 Objectives of the research
The theoretical underpinnings discussed above are used to address the key research questions: Are HECC scenarios used in the adaptation decision-making of stakeholders who will need to deal with the potential impacts? If yes, then are they acting to adapt in line with the high-end impacts? Conversely, are they considering adaptation actions that are only pertinent to more moderate levels of future climate change? What are the most important information types used for their decision-making (including non-climate drivers)? What are the barriers to using that information? And finally, what is the role of uncertainty in adaptation decision-making for stakeholders? These questions address the objective of this research: to provide insight into stakeholders’ knowledge and decision-making in regard to HECC scenarios based on qualitative evidence from a land resource management case study.
Semi-structured interviews were conducted with decision-makers engaged in the management of Scotland’s land resource sectors to gather empirical data about their adaptation decision-making. Details of how this analysis was performed as follows: first, a brief introduction to the HECC scenarios used is presented, followed by an overview of the study region, and then a description of the data collection and analysis process.
2.1 HECC scenarios for Scotland
The HECC scenarios referred to in this work are sourced from spatial (mapped) model output of projected temperature and precipitation changes for the early, middle and late twenty-first century. This model output was sourced from the UKCIP website, as well as directly from project partners at the Danish Meteorological Institute who produce output from the HadGEM Earth System Model, downscaled to a spatial resolution of 50 km. The “high-end” of emissions refers to representative concentration pathway 8.5, the highest of the IPCC’s current emissions pathways. Examples of these HECC scenarios that were used in this work can be found in Electronic Supplementary Material I.
2.2 The study region—Scotland
Under climate change, temperatures in Scotland are projected to increase significantly by the end of the century (∼3 °C). There is a (relatively) advanced knowledge of high-end scenarios of climate change for this region—that is, there is a greater agreement between climate models about the likely changes than is the case for many other regions. Scotland was chosen as a case study because it is a leader in adaptation planning, especially in terms of integrating and financing adaptation. An example of this is the statutory requirement (under the Climate Change (Scotland) Act 2009) for Public Bodies to report on their climate change adaptation measures (Parliament of Scotland 2009; Scottish Government 2011). The 32 local councils within Scotland have begun adaptation measures in line with these requirements.
Individuals from organisations involved in the land resource management sector were chosen as the focus of interviews because they represent sectors of the Scottish rural economy which would be directly and indirectly impacted by high-end climate change. The land resource management sector is also one of the foci of the adaptation measures required within the Scottish Government’s Climate Change (Scotland) Act. This region has demonstrated a mixture of bottom-up and top-down approaches to adaptation, and thus a deeper understanding of bottom-up constraints could help to further adaptation actions.
2.3 Data collection and analysis
Twenty in-depth face-to-face interviews were conducted with decision-makers in various locations across Scotland between March and June 2015. All interviews were conducted by the same interviewer and ranged in duration between half an hour and one and a half hours, depending on the responses given by the interviewee.
Stakeholders were identified and invited through existing contacts and local networks of practitioners that are maintained by SNIFFER (2015), a knowledge-brokering NGO that operates in the resilience and sustainability sectors in Scotland. Snowball sampling was also used (Biernacki and Waldorf 1981), wherein participants were asked to suggest other potentially suitable candidates. These stakeholders were selected against numerous criteria, based on a matrix developed and tested in similar stakeholder research by Gramberger et al. (2015) to achieve representativeness across categories. These criteria include demographics, sector, level of operation of the organisation, function of the stakeholder, level of operation of the stakeholder and organisational affiliation. The final selection of stakeholders consisted of representatives: from different sectors (with a focus on land resource management, e.g. forestry, agriculture, etc); at different levels of government (local, regional and federal), as well as NGOs and private business; within organisations that operate at different levels (locally, regionally, internationally); with different functions; and across the range of demographics.
Although participants’ organisations are all broadly part of the land resource management sector, many of the organisations operate across several different sub-sectors. These include, but are not limited to the following: land use/land use management, biodiversity conservation, infrastructure, agriculture, water, forestry and transport. The types of organisations that these stakeholders represent include the following: governmental agencies, companies and enterprises (including SMEs), research organisations, inter-institutional networks/associations, practitioners/planners, business organisations, NGOs, legal authorities (including regulators) and charities.
The interviews were framed by a decision-centred approach to on the ground adaptation decision-making. The empirical data collection was guided by the research questions stated in Section 1. The interviews focused on the individual, collective and institutional conditions and decision-making processes that underpin adaptation to HECC. Sixteen questions were asked, with multiple sub-questions that focused on the context and support for decision-making for climate change adaptation. The interviews were recorded and transcribed, then analysed using both deductive (based on an answer key) and inductive (based on thematic; Attride-Stirling 2001) analysis. The interview and answer key templates are available in Electronic Supplementary Material II.
Four key themes emerged from the interviews: (1) the use of HECC scenarios, (2) the barriers to use of climate change (including high-end scenarios) information, (3) socio-economic factors that influence decision-making and 4) the role of uncertainty in decision-making. These emergent themes from the interviews are explored in the following sections to analyse the conditions (challenges) that influence land resource managers when making decisions about adapting to climate change. They also support existing theory about the use of climate change information in adaptation decision-making. The following sections answer the research questions: Are HECC scenarios used in the adaptation decision-making of stakeholders who will need to deal with the potential impacts? If yes, then are they acting to adapt in line with the high-end impacts? Conversely, are they considering adaptation actions that are only pertinent to more moderate levels of future climate change? What are the most important information types used for their decision-making (including non-climate drivers)? What are the barriers to using that information? And finally, what is the role of uncertainty in adaptation decision-making for stakeholders? To provide context for answering these questions, the next sub-section presents an overview the types of decisions the interview participants are making. A brief overview characterisation of the interview participants themselves is presented in Electronic Supplementary Material III.
3.1 Types of decisions made by participants
Participants’ roles in the decision-making process within their organisations vary. Eleven of the 20 participants are primarily advising or consulting other colleagues, including higher levels of management, on adaptation decisions rather than personally making them (these are mostly in the government sector). Other roles in the decision-making process include the following: being part of a team that creates overall adaptation policy/action plans within the organisation (these are mostly in the business sector), implementing adaptation measures within the organisation, implementing maintenance measures and lobbying others about adaptation within or outside the organisation. All of the 20 interview participants stated that adaptation-related decisions (where they are actually being made) are primarily bottom-up processes, in the sense that the organisation would first define/assess/evaluate objectives. Because interview participants represent a mixture of types of organisations, as well as different levels within decision-making processes, they exhibit aspects of both individual and collective action theories of decision-making (see Section 1).
The key methods used in participants’ adaptation-related decision-making processes are as follows: expert judgement, real options, risk minimisation, cost-efficiency analysis/cost-benefit analysis, scenario analysis, probability analysis, multi-criteria analysis, formal political processes and sensitivity analysis. The types of information currently used by participants in these decision-making processes include visualisations (including GIS, scenarios, maps etc.), research-based outputs (primarily UKCP09 model output maps), information from research organisations (including boundary organisations), expert judgement and modelling of non-climate factors (e.g. tree growth models or business models). The majority (14 of the 20) of participants’ organisations have made adaptation-related decisions. These decisions typically have a short to medium lead time and a medium to long consequence time, equalling a long decision lifetime, and therefore requiring action to address high-end climate change projections, which are anticipated to occur sooner than previously thought (Stafford Smith et al. 2011).
3.2 Use of HECC information in adaptation decision-making
In most cases, specific temperature changes are not considered relevant to adaptation decision-making, which is generally focused on robust actions. Only a small number of organisations specifically consider climate change of greater than 2 °C (Fig. 1, right), and for the most part, there is no consideration of a specific temperature threshold nor the differences between e.g. 2 and 3 °C. In all cases, there is more concern for the potential impacts and the implications thereof, leading to a focus on broad, qualitative levels of change, rather than specific temperature thresholds. These themes indicate reasons for the discrepancy in numbers between the statement that HECC projections have influenced decision-making and the statement that the organisation is not specifically considering changes of greater than 2 °C. Examples of how participants use the broad level climate change projections (without specific temperature thresholds) include the following: proving the need to include climate change adaptation in the corporate risk register, demonstrating the potential changes using visioning exercises to encourage authorities to take on adaptation issues in their development plans, decisions on whether existing areas continue to be planted with forests, and scenario planning in the development of flood risk management plans. There is no clear difference or pattern in use of types of climate information between participant or organisational types.
3.3 Barriers to use of (any level of) climate change information
Participants’ responses indicated that information is not usable because of the following: it is not adequately tailored to the decision-making circumstance, there is a lack of cross-sectoral information and it is often not presented in a format that is usable (or translated out of “researcher language”). The most common information received is probabilistic information about the likelihood of the changes in climatic variables and the direct climate impacts those changes might cause. From the interviews it can be deduced that, in most cases, available information does not show the sectoral implications that climate change might bring about (while cross-sectoral approaches are still not considered the norm, they are recognised as necessary to support adaptation decision-making). Participants also particularly expressed a perceived lack of projections of future flood events. Analysis of the interviews shows that understanding trade-offs in the spatial scale of information is considered key, but virtually non-existent, while in some cases, technological barriers remain in using available information. These findings illustrate that climate variables alone do not influence decision-making—because adaptation decision-making is focused on impacts and therefore is decision-centred (Daron et al. 2015), not climate-centred. Uncertainty surrounding climate projections was only considered to be a limitation in the use of climate change information for adaptation decision-making by 10% of participants.
3.3.1 Barriers in the use of HECC scenarios
Where HECC information has not influenced decision-making, this is because of the following: the scenarios are considered to be “too far-fetched”; there is a lack of belief that world emissions are tracking the HECC projections; in some cases, the spatial scale is not adequate; the organisation uses general trends rather than specific figures or rates of change; numerous other (socio-economic) factors are considered to have a bigger influence on decisions; and participants are not sufficiently familiar with how to correctly use or interpret the information.
3.4 Socio-economic factors that influence decision-making
Climate change impacts will occur within the socio-economic context and will vary depending on the pathways that socio-economic variables follow in the future (Füssel 2007). Many different socio-economic variables influence climate adaptation decision-making. The future changes in all of the socio-economic factors are perceived to be highly uncertain because of their strong interrelationships.
Recommendations from participants about how to improve the usability of models for adaptation decision-making support the need to focus on providing properly contextualised, decision-centred rather than climate-centred information. They also focus on integrating socio-economic changes (both direct and indirect impacts) into the information, providing more guidance on cross-sectoral impacts and making better use of visual tools and approaches. Climate is only one aspect of decision-making, and it is not the most important aspect. In most cases, non-climate factors are more important to decision-making—and guidance is needed about impacts from non-climate factors, showing sector-specific implications. It is not more precise temperature projections that are needed for adaptation decision-making, but rather better contextualised impacts, adaptation and vulnerability information.
3.5 Uncertainty of changes to climatic variables is not a barrier to adaptation
Climate change uncertainty, referring to the uncertainty of projected climatic changes, is a familiar term to participants and is discussed and understood by them primarily in qualitative, descriptive terms, although it is also communicated using probabilistic climate change futures. Problems in dealing with uncertainty in adaptation decision-making—and this is uncommon—arise from the perceived difficulties associated with understanding the synergies between particular climate change and socio-economic change scenarios, not due to the presence of uncertainty per se. Nonetheless, uncertainty is not considered to be a significant barrier in taking action to adapt. However, uncertainty does affect the ways in which decision-makers choose to adapt, viz. decision-makers focus on incremental rather than transformative solutions.
3.6 Challenges to implementing HECC adaptation measures – summary
Short political cycles influence decision-making processes regarding how far into the future adaptation planning can go; this reduces the focus on HECC (which requires a long-term view). It also makes transformative adaptation less likely, as it is easier to adjust incrementally rather than through transformation because of changing political circumstances and new climate change information.
HECC scenarios are not currently regarded as most probable by the interview participants and therefore are not considered to be directly useful for adaptation decision-making. This could in part be explained by cognitive biases and judgment heuristics, which act to enhance the perception of good adaptive capacity and downplay the risks (Grothmann and Patt 2005). For example, the optimistic bias (Weinstein 1980) suggests that decision-makers would consider the risk of HECC affecting their organisation to be smaller than the average risk, and this may influence their decision-making with regard to adaptation. This type of decision is then confirmed in the decision-makers’ thinking because HECC scenarios represent only one of a range of projections. Therefore, reaffirming their belief that it is less likely to affect their organisation, despite the evidence that global emissions are in line with or above the projected HECC pathways. This theory explains the seeming lack of urgency placed on adapting to HECC. In addition, the fact that HECC scenarios are sometimes considered “too far-fetched” suggests an inability to visualise possible futures under HECC scenarios in ways that are meaningful to some of these decision makers. This also suggests that they are unable to relate these to current decision making in a way that they can understand and act upon. This is a well-recognised dimension influencing adaptation decision-making (see for example Wyborn et al. 2016).
According to the participants, institutional decision processes that are highly influenced by timeframes of political and policy cycles (5–10 years on average) are one of the primary factors inhibiting adaptation to HECC being included in existing decision-making. The Scottish government has recently implemented good quality formal institutions related to climate change adaptation—in the form of regulation that requires all public bodies to address adaptation in their risk strategies and to provide updated adaptation action progress reports. This institutional context has facilitated increased levels of collective action on adaptation measures, and supports existing literature on factors that facilitate adaptation for collective action (e.g. Poteete and Ostrom 2004). It may also be influencing how many of these interview participants’ organisations are making adaptation decisions. But it is yet in the early stages and therefore remains to be seen just how much sustained impact this regulation will effect.
The literature regarding enablers in the uptake of climate change information overwhelming centres on collaboration, interaction and bridging work and tailoring information, accessibility/usability and agency capacity and training (Jones et al. 2016; e.g. Lemos et al. 2012). Improvements to climate change science are much less evident in the literature regarding how to best enable the uptake of climate change information (Jones et al. 2016), whereas improvements to climate change impacts information are considered to be important.
The finding that there is a perceived lack of probabilistic information about the likely future cross-sectoral changes in socio-economic variables and the indirect impacts thereof is common in the literature (e.g. Harrison et al. 2016). Such decision-centred, cross-sectoral examples of how to successfully adapt are considered salient for adaptation decision-making (Holman et al. 2016; Harrison et al. 2015; Jäger et al. 2015; Skourtos et al. 2015). This perceived lack may explain why these decision-makers do not find information about, for example, the differences between 2 or 3 degree temperature changes to be useful for their adaptation decision-making. It may also explain why the current manifestation of ‘climate services’ (European Commission 2015; Lourenço et al. 2015) has not been used to the extent expected by the climate modelling community—because it remains climate-focused rather than decision-centred. Focusing modelling resources to support adaptation on improving the contextualisation of, for example, impacts, adaptation and vulnerability information, rather than improving the modelling of specific climatic variables would begin to address this discrepancy.
These findings are mostly consistent with the existing literature on barriers to the use of climate change information for adaptation decision-making (e.g. Eisenack et al. 2014; Mase and Prokopy 2014; Jones et al. 2016). Some limited research has been conducted on the interdependencies between barriers and the dynamic changes that affect them (e.g. Cuevas 2016), but more is still needed.
To achieve this desired decision-sensitive contextualisation, greater efforts need to be put into co-producing information that fits within the decision-centred framework employed by decision-makers in land resource management. Using existing, trusted intermediaries, or “knowledge brokers”, within boundary organisations may assist in implementing these strategies to help overcome the barriers that prevent better mutual understanding and interactions (Turnhout et al. 2013; Schlierf and Meyer 2013; Lemos et al. 2014). Boundary organisations such as Adaptation Scotland1, along with similar organisations in other regions and other countries, hold the potential to play a key role in this process of knowledge brokering, as trusted intermediaries with strong links to both knowledge providers and decision-makers (Turnhout et al. 2013). However, the level of success that boundary organisations are able to achieve is influenced by institutional conditions which affect their financial and human resources, as well as by the behaviour of individuals with (how engaged and progressive they are) respect to integrating new knowledge and practices.
The finding that uncertainty about projected future changes to climatic variables is not a significant barrier to decision-making supports existing literature showing that, in practice, uncertainty of climate change information is not a barrier to taking action to adapt to climate change (e.g. Lourenço et al. 2014; Tribbia and Moser 2008; Bryson et al. 2010; Heckbert et al. 2010; Lemos and Rood 2010; Street and Nilsson 2014; Dunn et al. 2015). This finding is also in line with a similar case study of coastal managers and their information needs for adaptation (Tribbia and Moser 2008), which showed that the uncertainties in climate change science were not considered a significant obstacle to managers taking action to adapt.
The finding that qualitative descriptions of uncertainty are more usefully employed than their quantitative counterparts supports the idea that a different approach should be taken to working uncertain climate projections into decision-making (Dessai et al. 2009), rather than requiring definite answers which climate projections cannot supply. This suggests that a qualitative, descriptive approach might be a better way for the scientific community to express uncertainty. This could involve representing uncertainties using the descriptive terms defined, for example, by the IPCC (Mastrandrea et al. 2010; their “likelihood”), rather than using the quantitative probabilities associated with each term. The former are more closely aligned with the qualitative, descriptive terms which decision-makers use to discuss uncertainty, and therefore fit well with existing decision-making processes, and are thus more likely to be correctly understood and correctly used. By using this information as one of several inputs to inform the decision-making process, decisions about adaptation strategies can be made even though deep uncertainties exist (Dessai et al. 2009).
Knowledge of HECC is relatively commonplace among interview participants, but HECC is not considered to have a high probability of occurring, and so existing actions to address climate change do not focus on adapting to HECC scenarios. Lack of usability of information (because it is not adequately contextualised or sufficiently cross-sectoral) and institutional decision processes that are highly influenced by timeframes of political and policy cycles are two of the primary factors inhibiting HECC from being included in existing adaptation decision-making. The first of these barriers can be overcome by tailoring and contextualising information to focus on the implications of particular sectoral and importantly also cross-sectoral impacts of climate change (both direct and indirect). This could come, for example, in the form of modelled impacts (e.g. IAVs) showing sector-specific and cross-sectoral implications of the non-climate (but climate influenced) impacts. This information would be more consistent with existing individual and institutional decision-making processes, and would therefore be more likely to be used in the adaptation decision context. The institutional barriers associated with the political process and policy cycles are greater challenges to overcome. This work has shown how important it is to begin any adaptation decision-making work with adequate diagnosis and framing of the problem; this includes identifying that much of the problem of adapting to climate change is in fact institutional. This is a widely recognised fact, and an area that would benefit from co-produced research.
Uncertainty is not considered to be a significant barrier to adaptation action; however, a different approach should be taken to working uncertain climate projections into decision-making (Dessai et al. 2009). Qualitative, descriptive uncertainty terms are more closely aligned with existing decision-making processes and are, therefore, more likely to be correctly understood and used.
Understanding challenges for individual and collective action for adaptation decision-making processes provides important evidence to assist with contextualising climate change information. Participatory approaches such as this one are needed in this process to assist with the recognition and integration of diverse knowledge types about adaptation decision-making and how to overcome the existing barriers. Such approaches address the need for deliberate and ongoing learning about adaptation decision-making. The outcomes of this research are helping climate modellers within the IMPRESSIONS project (www.impressions-project.eu) to create usable, cross-sectoral, decision-centred information that can support decision-makers in including HECC scenarios in their efforts to adapt to climate change. This information is more likely to be usable in the intended policy setting and therefore to enhance resilience. The results of this research should be seen as further encouragement to the slow, but distinct, change in the direction of applied research agendas that continues to build momentum in the climate change science community.
Adaptation Scotland, a public NGO which is funded by the Scottish Government, is an example of a boundary organisation in Scotland that works at a local level to integrate new and existing information about adapting to climate change and to see it through to implementation both in policy and on-ground within local communities. An example of how they help decision-makers to manage the uncertainty associated with future socioeconomic conditions is by providing online visualisations of alternative possible future scenarios; in these scenarios decision-makers can make different adaptation changes that explore robust solutions under the different potential socio-economic changes.
The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) under grant agreement no 603416, IMPRESSIONS Project (IMPRESSIONS—Impacts and Risks from High-End Scenarios: Strategies for Innovative Solutions (www.impressions-project.eu). The authors would like to thank SNIFFER and the interview participants for their generous support and for offering their time.
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