Governing global telecoupling toward environmental sustainability

Telecoupling constitutes a particular class of globalized environmental issues that are neither local-cumulative, nor transboundary, nor concerning global commons, but that arise because of specific linkages between distal regions. Such telecoupled issues, e.g., associated with global commodity chains, waste flows, or migration patterns, have been receiving increasing attention from scholars of global land change science. Although governance research has mostly studied existing institutional responses to these issues, telecoupling opens up a problem-oriented perspective on issues of environmental sustainability that occur regionally, but that arise because of global linkages, and raises novel questions about how such issues are and could be governed in a global architecture. We draw insights from existing literature on globally interconnected phenomena to advance our understanding of governing telecoupling toward environmental sustainability. We first identify and discuss five particular challenges that telecoupling poses to global environmental governance: knowledge deficits, divergent interests, high transaction costs of cooperation, the weak legitimacy base of current governance arrangements, and policy incoherence and fragmentation. Second, we review conceptual literature that meaningfully address the governance of telecoupling, while utilizing differing terminologies, for example, through reference to “flows,” “chains,” or “multiscalar” issues. Building on this, we elaborate on how currently debated governance approaches respond to the identified challenges. We conclude with a brief note on where we believe the discussion on governance of telecoupling stands, and where we see directions for future research.

The field of global environmental politics and governance has been maturing in recent years, as witnessed by a number of handbooks and review articles (Speth and Haas 2006, Dauvergne 2012, Harris 2014, Pattberg and Widerberg 2015. However, in their recent overview of the field, Dauvergne and Clapp (2016:7) warn that there is too much work on "theoretical refinements of existing governance arrangements and the intricacies of institutional dynamics" and that the literature therefore "tends to miss important developments regarding new environmental issues that as yet are not subject to sophisticated governance frameworks." The telecoupling concept in fact provides for a perspective that starts from environmental issues arising from specific global inter-regional linkages. Rather than a priori engaging with refinements of existing governance arrangements, it brings focus to the need for, and the design of, effective institutions given globally telecoupled interconnections. In this sense, the telecoupling concept adds a new perspective to the (environmental) problems caused by specific global interactions. Different forms of governance are potentially addressing such phenomena, while others are likely going unaddressed. Taking a telecoupling perspective on environmental issues, it is crucial to understand the telecoupled flow and its environmental implications, and then to consider different (potential) governance responses in conjunction (rather than studying and understanding particular governance instruments in the first instance). An emerging body of literature is now beginning to address the governance of telecoupling (Challies et al. 2014, Lenschow et al. 2016, Eakin et al. 2017, Liu et al. 2018, Oberlack et al. 2018, Newig et al. 2019, and could be seen as a response to the deficits identified by Dauvergne and Clapp (2016).
We aim to contribute to the literature on global environmental governance in a two-fold manner. After laying out our understanding of governance concerning telecoupling, we discuss five particular challenges that telecoupling poses to global environmental governance. Arguably, telecoupling demarcates a unique class of environmental problems, which are driven by distant interlinkages. Subsequently, we review conceptual literature that meaningfully address the governance of telecoupling, recognizing that different fields of study describe this phenomenon in quite different terms. We seek to map and compare the different conceptual lenses on telecoupling, asking: What specific empirical phenomena are described, and through which conceptual lenses ("flows," "chains," "multiscalar" etc.)? And what governance arrangements are described and/or called for? Building on this, we elaborate on how currently debated governance approaches respond to the identified challenges. We conclude with a brief note on where we believe the discussion on the governance of telecoupling stands, and where we see directions for future research.

DEFINING GOVERNANCE IN RELATION TO TELECOUPLING
Telecoupling has been described as an essentially "ungoverned" process because unintended negative consequences of telecoupling emerge beyond the reach of established governance arrangements: governance institutions in one region cannot cope with implications in distant, linked regions; likewise, higher level institutions are missing (Eakin et al. 2014). However, human activity almost never operates in an institutional void. Trade regimes exist, and virtually every country has a system of environmental governance in place. In fact, telecoupling is often enabled or even instigated by governmental action, as has been illustrated by Hamilton-Hart (2015) with the example of Southeast Asia's state-supported palm oil industry [2] . And yet, these existing governance institutions may do little to cope with the negative externalities caused by spatially-and often also socially and institutionally (Eakin et al. 2017)-distant processes. Therefore, we focus here on those instances and institutions of governance that explicitly respond to telecoupling, addressing its negative environmental externalities. Governance in this sense targets leverage points to mitigate sustainability problems created by telecoupling across the connected regions, or in spillover regions (Liu et al. 2018). Governance here ranges from state-based environmental measures, which also potentially include private and civil society actors, to nonstate actor-driven and multistakeholder initiatives (Lenschow et al. 2016). Telecoupled systems, in particular, tend to be increasingly populated by private sector-led governance arrangements (Cashore 2002, Gilligan andVandenbergh 2020).
This understanding of governance largely aligns with the vast literature on environmental and sustainability governance (e.g., Lemos and Agrawal 2006, Biermann 2007, Meadowcroft 2007, Jordan 2008, Newig and Fritsch 2009). Like environmental law or environmental policy, environmental governance implies the aim to safeguard the environment and to help make development more environmentally sustainable. We may therefore define environmental governance as the "totality of interactions among societal actors aimed at coordinating, steering and regulating human access to, use of, and impacts on the environment, through collectively binding decisions. Environmental governance arrangements may be directed towards a range of causesincluding conservation and environmental protection, spatial and Ecology and Society 25(4): 21 https://www.ecologyandsociety.org/vol25/iss4/art21/ Fig. 1. Environmental problems classified according to their spatial / jurisdictional extent. A + sign denotes that the criterion mentioned in the left column is of relevance to the spatial extent described; a -sign denotes that this is not the case; brackets denote that the criterion is somewhat important (+) or unimportant (-). The white arrows and the circle denote the spatial extent of the environmental problem.

CHALLENGES OF GOVERNING TELECOUPLING TOWARDS SUSTAINABILITY
We argue that globally telecoupled phenomena pose considerable challenges to effective governance toward environmental sustainability. It appears that these challenges, while affecting various kinds and cases of telecoupling, are distinctly different from other environmental problem settings (see Fig. 1 for an overview). Building on the established distinction between three broad kinds of global environmental problems (O'Neill 2009; for a similar typology see Turner et al. 1990), we highlight the particular governance challenges posed by telecoupling. Localcumulative problems occur within a given jurisdiction but have cumulative global effects, e.g., biodiversity loss or deforestation. Transboundary environmental problems cross and/or spill over from one jurisdiction to another, such as water pollution and biodiversity problems in cross-border river basins and nature protection areas, or air pollution in neighboring jurisdictions (Earle et al. 2010, Perrin andBernauer 2010). Finally, global commons issues refer to effects or impacts on, for example, the global atmosphere or the oceans, which are not territorially bounded.
Arguably, telecoupled environmental problems represent a unique class of global environmental problem (see Fig. 1). First, there is the distinctive, yet often complex, spatial extent of telecoupling. Local to regional, place-bound environmental problems (such as air pollution from urban traffic) may be effectively addressed at the local or national level. Similarly, transboundary environmental problems (such as cross-border commuter traffic or water pollution) share a common spatiality (or at least a spatial proximity) that fosters collaboration in solving environmental problems between neighboring jurisdictions (Blatter 1997, Plangger 2019). However, this is different for globalized environmental issues, which are typically characterized by a spatial disconnect. Telecoupled issues are also distinct from global commons issues such as global climate change, biodiversity loss, or marine pollution, in that they are more specific and seldom directly affect large parts of the globe. Rather than focusing on global institutional solutions for the protection of international common pool resources (e.g., Haas et al. 1993, Barkin andShambaugh 1999), telecoupling directs our attention to issues concerning (sub)nationally owned and managed resources, which are used, exploited, or impacted on by actors from other parts of the world. Therefore, classical instruments of global environmental politics and governance, such as international environmental agreements, form part of the overall governance context as they may partially regulate telecoupled flows. However, they may not be the most targeted instruments to address the specific local environmental implications arising from telecoupled relations between distant regions. Certain bilateral arrangements, such as safeguards attached to international development aid or World Bank loan conditionality, may target environmental protection in specific regions (e.g., Martinot 2001, Kareiva et al. 2008, Corson 2010, Restivo et al. 2018, but this is not always the case, and where such arrangements do exist, they are not always effective in achieving these environmental goals (Mak Arwin and Lew 2009, Buntaine and Parks 2013, Shandra et al. 2016, Sommer et al. 2017. All in all, environmental effects of telecoupling sit somewhere between transboundary and global issues. Telecoupled environmental problems share the specific sending/receiving relationship with transboundary issues, and the smaller number of involved jurisdictions. With global issues, they share the spatial disconnect and the often more complex causal chains, making data availability and traceability more difficult. Strikingly, in contrast to the other three described settings, there is no established body of literature on the governance of telecoupling (Eakin et al. 2017).
So what is it that makes the governance of telecoupling particularly challenging? On a very general level, the "disconnect between the problem origin and outcome challenge efforts at problem resolution" (Eakin et al. 2014:143). Based on a careful reading of the literature, we identify five major reasons why telecoupled sustainability issues pose particular challenges for effective governance responses. Although none of these challenges are unique to telecoupling, they do tend to be particularly pronounced in relation to telecoupled issues.
1. Knowledge deficits: In order to effectively address the externalities of telecoupling, the telecoupled flows and cause-andeffect-relationships ought to be known in the first place. However, compared to local or transboundary governance issues, which are characterized by spatial proximity, the distances involved in telecoupled issues impede information feedback and make flows and effects less visible. It is often difficult if not impossible to trace flows and establish causality in complex telecoupled chains. This is partly due to fundamental issues of unpredictability in complex systems, due to the multitude of potential intervening factors, such as the lack of transparency and accountability in many commodity chains, or the lack of relevant knowledge and data. This makes it difficult to identify responsibility or hold certain actors accountable. Moreover, it may not be obvious where costs and benefits occur. In the field of global value chains and networks, there is a growing literature on the issue of transparency and traceability (see, e.g., Oosterveer 2015, Gardner et al. 2019).
However, there are a number of factors working against successful governance interventions. One is the sheer complexity of chains and interlinked processes, which requires interdisciplinary analyses. Moreover, certain economic interests may oppose full transparency. For example, soy traders may not wish to disclose their suppliers for fear of losing their competitive market position.
Furthermore, while databases tracking biophysical processes like biodiversity loss or deforestation offer important insights about the environmental impacts of production and trade, reliable data on social dimensions often do not exist. Consequently, flow-based governance arrangements often miss important issues, such as local actors' loss of access to land, water, and other resources.
2. Diverging interests: The distant linkages characteristic of telecoupled phenomena often require bilateral or multilateral cooperation over greater distances. Such cooperation relies on identification of mutual interests among the involved parties (Keohane 1984). Unlike transboundary issues, where spatial proximity more easily allows for cooperation between different interests, distant regions less likely share common interests that could underpin joint solutions to telecoupled sustainability issues. First, given geographical and often cultural distance, a common value basis is less likely than in neighboring regions. For example, in the case of Brazil-Germany soy trade, German environmental groups are often concerned with the protection of rainforests, whereas local Brazilian concerns also focus on pesticide pollution and access to land and clean water. European importers and retailers have usually delivered certified soy whenever their clients have required this, however, demand for certified soybeans has been relatively low and the main certification standards ProTerra and the Round Table on Responsible Soy (RTRS) have suffered from surplus production of certified soy. In addition, as in many other supply chains, the soy chain has seen fierce contestations about the distribution of costs and benefits of certified products between southern producers, certifiers, and retailers (see Schleifer et al. 2019). In comparison to products that are consumed directly, like coffee or cocoa, consumer demand for sustainable "hidden commodities" like soybeans has been low, and the physical distance between soy-producing and soy-consuming countries aggravates this invisibility and contributes to manifesting different points of view. Diverging interests also explain why international initiatives to compensate for regional conservation efforts have often failed, as was the case with Ecuador's Yasuni-ITT initiative. Here, it was proposed that the international community partly compensate Ecuador for foregone financial benefits incurred by not exploiting an oil field underneath the Ecuadorian Amazon rainforest, with the aim to both conserve biodiversity and contribute to climate change mitigation. Yet the innovative and ambitious plan failed because of a lack of interest on the part of potential financial contributors (López Rivera 2017).
3. High transaction costs: Cooperation not only requires shared interests, it becomes more unlikely the higher the transaction costs involved in establishing cooperation (Jager 2016). Transaction costs are likely to be lower if there is a history of prior collaboration among states, and overall trustful relationships (Keohane 1984). This has been described as a typical "success" factor in the formation and delivery of transboundary environmental governance (Bernauer 1997, Jager 2016. Transboundary environmental governance has been described as offering "superior conditions of scale" for the management of common pool resources and environmental problems (Conca 2012:127, Haas 2016. Addressing environmental problems on the regional scale is characterized by "proximity, [and] shared histories of cooperation or conflict" among interacting parties (Balsiger and Prys 2016:240). Cases in point are the joint management of river basins, e.g., the International Commission for the Protection of the Rhine, or the Convention on Long-Range Transboundary Air Pollution (LRTAP). In contrast, for telecoupled issues, bilateral or multilateral agreements are less likely to be in place; and if they do exist, they are less likely to be effectively implemented, for the same reasons. What is more, the often complex set of actors and jurisdictions involved increases transaction costs of effective cooperation. Even compared to global environmental problems, telecoupled issues may exhibit higher transaction costs, because in the international arena, traditions of rulemaking through international organizations already exist. However, bilateral or multilateral agreements are perhaps capable of addressing problems emerging from telecoupling because of their relative specificity. Research in global environmental governance also points to the global diffusion and convergence of norms, principles, and policies developed at the level of international organizations, which may also trickle down to various parties to telecoupled relations (Holzinger et al. 2008, Jörgens et al. 2014).
4. Weak legitimacy base: In so far as efforts to govern telecoupling occur in polycentric, transnational regulatory regimes with a strong presence of nonstate regulators, their legitimacy and accountability have been highly contested (Black 2008, Oosterveer 2018. Private-actor based transnational environmental governance has been touted for being potentially more proactive than state-based governance, for example, in the climate regime (Gilligan and Vandenbergh 2020). However, whereas national legislation and international environmental agreements rest on established sources of legitimacy, attempts to govern telecoupled issues are particularly problematic in that respect. Scholars have criticized the lack of legitimacy of multistakeholder initiatives on agro-commodities like palm oil and soybeans (Cheyns 2011, Fuchs et al. 2011, Elgert 2012, Fortin 2013, Schleifer et al. 2019. Even in the case of the Forest Certification Standard (FSC), which has been considered a leader among sustainability standards for its democratic inclusion of indigenous peoples and civil society organizations, scholars identified important legitimacy deficits (Meadows et al. 2019). Weak legitimacy of private governance approaches is evident in that groups subjected to governance are largely excluded from decision making, that information is usually tightly controlled, and that the affected public is often not able to hold decision makers accountable if a given governance institution performs badly.
Multistakeholder initiatives are an increasingly favored mode of governance, but, whether they involve state actors or not, they typically lack the legitimacy to take decisions that would effectively address telecoupled sustainability issues. This is exemplified by the Roundtable on Sustainable Palm Oil and the Round Table on Responsible Soy (Schouten andGlasbergen 2011, Okereke andStacewicz 2018). As the sustainability issues in both of these industries are often very controversial, actors on both sides of the spectrum, those striving for more stringent and those striving for more lax regulation, often abandon the respective governance initiatives. In turn, corporate-led sustainability governance is often weak with regard to both procedural development and implementation in practice. The auditing of corporate initiatives also typically relies on self-reporting, and data on the effectiveness of such initiatives are usually scarce. 5. Policy incoherence and fragmentation: Arguably, the effective functioning of environmental governance arrangements relies on a certain degree of coherence among the involved policies and institutions (May et al. 2006). Implementation of highly antagonistic policies is in any case almost impossible. Although this is an issue for many kinds of environmental problems, it is particularly relevant in telecoupled settings. Both vertical coherence (in multilevel systems) and horizontal coherence (across states and policies) may be problematic, given likely differences in policies in sending and receiving systems as well as with higher order policy, e.g., WTO trade rules (Reyes-Mendy et al. 2014). Such incoherencies may be due in part to diverging interests as discussed above. The recent trade agreement between the EU and Mercosur provides an example of a policy that fails to align trade and sustainable development, as Brazil successfully resisted attempts by the European negotiators to strengthen sustainability and human rights provisions. Furthermore, governance arrangements targeting telecoupled systems are likely to suffer from high degrees of fragmentation (Zelli and van Asselt 2013), given the prevalence of private and multistakeholder initiatives in sectors such as the certification of biofuels (Schleifer 2013).

CONCEPTUAL LENSES ON GOVERNANCE OF TELECOUPLING
Having identified five broad challenges of governing telecoupling toward sustainability, where might one look for responses to these challenges? We begin by reviewing areas of scholarship that we deem of importance in understanding the governance of telecoupling (see Table 1 for an overview). Although these approaches do share a concern with the governance of globally telecoupled environmental issues, we see a still limited cumulation of knowledge, in the sense that the different scholarly communities do not tend to take account of and build on one another toward a comprehensive understanding of global environmental governance. By addressing the potential that each area of scholarship holds for understanding the governance of telecoupling, we aim to pave the way for more systematic and comparative empirical research in the field. In identifying the areas of scholarship discussed below, we acknowledge that these may overlap to some degree. Nevertheless, each brings specific contributions to the challenge of governing global telecoupling.

Global environmental governance
Telecoupled phenomena rarely emerge in clearly defined interstate contexts, but rather in multilevel, multistakeholder, and cross-sectoral contexts. The early work of global environmental governance (GEG) scholars, rooted in the literature of international relations, tended to analyze environmental regime formation under conditions of state sovereignty and diverging interests. Not least because of the influence of the International Human Dimensions Program on Global Environmental Change (IHDP), the empirical focus widened to institutional effects and effectiveness (e.g., Miles et al. 2002). International environmental institutions were thought to influence human behavior as not only utility modifiers and enhancers of cooperation, i.e., helping overcome diverging interests, but also as offering legitimacy bases in bestowing authority and facilitating learning (Mitchell 2013). Analytically, GEG scholars began to acknowledge the critical role of a wide set of public and private actors at different levels of https://www.ecologyandsociety.org/vol25/iss4/art21/ International regimes may reduce transaction costs, build trust, and support learning, all of which could help overcome initial conflicts. Institutional interplay, incoherence, and fragmentation are a second challenge addressed through actorbased (e.g., venue shopping) and institutionalist (e.g., "fit" and integrated management) lenses.
Mostly state-based governance is supposed to alleviate environmental sustainability problems. Links to experts (epistemic communities), NGOs, multinational corporations have been addressed as well.
Focus on specific institutional designs of international/ transboundary agreements with little attention to local circumstances; associated cognitive distances and knowledge gaps.

Transnational private governance
Helps to understand how flows of products are regulated by private certification, standards, and commitments.
Overcomes challenges of transaction costs, as private governance crosses scales and jurisdictions; helps to identify existing knowledge gaps; more limited contribution to bridging divergent interests by developing multistakeholder initiatives.
Private actors, mainly corporations and civil society organizations; mixed goals, often responding to critique or consumer preferences.
Not enough research into public and private interactions, cross-sectoral relations, and local complexities.

Global commodity chains
Describes how key actors coordinate economic chains to link distal regions and processes from production to consumption.
Commodity chain governance, which is often private and market-based, can reach cross-border networks of actors (producers, suppliers, traders, and buyers) and processes that are often out of public view and beyond the scrutiny of any specific government or state-based governance instrument.
Mostly private firms; in order to coordinate chain activity, but also (with public sector and civil society actors) to address certain negative externalities.
Focuses on within-chaingovernance and interfirm linkages, little research on broader institutional interactions and environmental impacts.
Environmental flows Sociological perspective, describing flows but also addressing governance challenges.
Overcomes challenges of transaction costs (through networked collaboration and trust building) and divergent interests (through brokering activities of networked actors).
A wide range of actors considered with a goal of alleviating environmental sustainability problems.
Relatively abstract about specific problem settings and governance mechanisms. Focus on structures of market failure, state capture, and behavioral ethics.
Focus on systemic and behavioral failures in the global capitalist economy "above" telecoupled places and flows; literature is limited regarding the nuances of governance responses. Scalar governance Addresses the spatial fit of institutions (governance arrangements) to the spatial scale of the problem to be governed, as well as the political implications of "governance rescaling." Bridges diverging interests (because ideally, one governing body would deal with conflicts arising from spatial spillovers), and lower transaction costs once governance mechanisms are institutionalized. Such institutions could also provide legitimate decision-making structures.
Mostly state-based governance is supposed to alleviate environmental sustainability problems.
Does not capture spatial disconnects, where drivers and impacts operate at different scales.

Telecoupling and land system science
Integrates place-based and flow-based phenomena; helps to understand the interaction of multiscalar governance approaches.
Provides an analytical framework to analyze the interaction of different governance instruments and to identify shortcomings in existing governance arrangements.
Very heterogeneous, previous literature outlines the lack of effective governance for addressing local problems exacerbated by telecouplings.
Debates on the governance of telecoupling would benefit from a more nuanced treatment of governance.
governance (e.g., Haas 1990, Princen andFinger 1994). This work examined the influence of ideas (discourses, frames, and knowledge, e.g., Young 1998, Zürn 1998, and reflected on hard and soft policy instruments, thus establishing links to the literature discussed below. Also, with respect to the analysis of cross-issue and cross-sectoral linkages and the associated challenges of policy incoherence and institutional fragmentation, which are characteristic of telecoupling, the GEG literature has developed important insights, drawing much inspiration from the IHDP project (Young 1996, Young et al. 2008. Empirical work examines the greening of international economic institutions like the WTO and the World Bank (cf. Charnovitz 1997, Eckersley 2004, international environmental policy integration and environmental mainstreaming (e.g., Nilsson et al. 2009), policy coherence among international organizations (e.g., Gehring 2006, Oberthür andStokke 2011), and nexus politics (e.g., Hoff 2011, Boas et al. 2016. Going beyond issues addressed in the GEG literature, telecoupled phenomena point to cognitively distant connections, often escaping the perception of actors involved and thus eluding obvious institutional solutions. Bridging such geographic and related cognitive distances might require integration at the truly global level, as reflected in political and academic discussions about the need for a global environmental organization equipped with more authority than the United https://www.ecologyandsociety.org/vol25/iss4/art21/ Nations Environment Programme (Esty 1994, Biermann andBauer 2005), and the pursuit of earth system governance (ESG) (Biermann 2007(Biermann , 2014. However, the all-encompassing perspective of ESG results in complexity risking institutional overload, which undermines problem solving approaches targeted at particular telecoupled settings. Nevertheless, recent ESG scholarship aims to consider particularly growing interconnections and global variation that are central to telecoupling (Burch et al. 2019). Similarly, Young and Stokke (2020) formulate response strategies to tackle instances of institutional overload and, for instance, argue that procedures facilitating interplay management may help to achieve regulatory coherence even in highly complex problem settings.

Transnational private governance
Private governance initiatives are particularly relevant for shaping and regulating flows between sending and receiving systems involved in telecoupled relations. An array of private initiatives are playing an increasing role in flow-based governance: certification and labelling, corporate sustainability commitments (for instance, to deforestation-free supply chains), multistakeholder agreements, grievance mechanisms, and information disclosure Lister 2012, Mol and. These initiatives have often emerged in response to feedback loops about localized negative externalities of corporate activity. Although private and multistakeholder initiatives have influenced both local production processes and consumer behavior, their effectiveness on the ground is still under-researched (Thorlakson et al. 2018, Gardner et al. 2019).
For our purposes, the private governance literature is important, because it sheds light on the legitimacy, content, and functioning of private initiatives and it comprehensively discusses shortcomings of corporate-led or multistakeholder governance initiatives. These include limited uptake, the low stringency of many schemes, disregard for broader socio-political issues, weak supply chain transparency, and the dominant role of corporate interests in such initiatives (Pattberg 2006, Elgert 2012, Challies 2013, Derkx and Glasbergen 2014, Vos and Boelens 2014. The respective findings help to understand the role that private governance plays within broader governance arrangements shaping telecoupled phenomena, which is important to better understand existing shortcomings and to reflect on alternative scenarios that might better address negative externalities.

Governance of global commodity chains
Global commodity chain (GCC) research examines networks of actors, particularly producers, consumers, and intermediaries, in the global economy (Gereffi 1994, Bair 2009). GCC analyses have focused on cross-border interfirm relations (Gereffi et al. 2005), exploring how firms shape chain structure and dynamics, and therefore might offer valuable insights for the governance of specific telecouplings. Although much GCC governance research has focused on within-chain interfirm coordination Schmitz 2001, Gibbon et al. 2008), this has shed light on how powerful corporate actors can drive chain functions (Gereffi 1999, Dolan andHumphrey 2004). Despite an enduring interest in interfirm interaction, GCC studies have also recognized the influence of external governing actors Schmitz 2001, Kaplinsky andMorris 2002), and increasingly turn to broader socio-political governance questions. Some GCC scholars have called for a governance perspective, arguing that chains "can both undermine government policy but also offer new leverage points for government initiatives" (Humphrey and Schmitz 2001:21). To a great extent, GCC governance research has focused on the role of nonstate governing actors, and drawn attention to the limits to private sustainability governance (e.g., Cheyns 2011, Dauvergne and Lister 2012, Challies 2013. Recent research has sought to integrate the vertical (flow) and horizontal (place) dimensions of chains for a more systematic treatment of local-level social and environmental impacts (see Bolwig et al. 2010).
The concept of governance continues to evolve and widen in GCC work. Havice and Campling (2017) begin to bridge the chain governance and environmental governance literature through conceptualizing "environmental conditions of production" as central to GCCs, although they do also remain primarily concerned with firms and firm strategies. Bush et al. (2015) offer a helpful distinction between: (1) sustainability governance in chains, by firms to manage their environmental performance; (2) sustainability governance of chains, by lead firms to influence performance of other chain actors; and (3) sustainability governance through chains, by different actors (internal and external to chains), to "collectively steer sustainable production and consumption practices" (Bush et al. 2015:13). Such a typology of chain governance offers a potentially useful perspective on the role of firms and other private actors in governing telecoupling (Newig et al. 2019).

Governance of environmental flows
The notion of flows, which is so central to telecoupling, has been a focus of extensive research by (environmental) sociologists, who have sought to describe the diffusion of social structures under globalization since the late-1990s (Oosterveer 2018). Social theory was to be made "less static, more fluid, and more directed towards flows and networks, instead of social systems and in particular the nation state" (Spaargaren et al. 2006:ix). Drawing on seminal contributions by Castells (1996), Urry (2003) and others, Mol and Spaargaren (2012) advanced a specifically environmental perspective, centered on networks and flows as key constituting categories of global modernity. They argue that "if we are to understand today's global environmental politics and governance we have to understand how networks and flows function and can be governed" (Mol and Spaargaren 2012:194). Thus, a key governance challenge is the regulation of flows rather than regulation of localities, in the context of emergent "deterritorialized forms of authority" (Mol and Spaargaren 2012).
An environmental flows perspective points away from traditional state-based governance, which bears the aforementioned problems of transaction costs and diverging (geo-political) interests, and toward flow-based governance arrangements. Identifying network actors such as NGOs, private companies, and transnational bureaucracies (Oosterveer 2018) as potentially important governing agents, flow-based governance may have the potential to overcome challenges of transaction costs, e.g., through networked collaboration and trust-building, and divergent interests, through brokering activities of networked actors.
However, it should be noted that the networks and flows perspective has been subject to debate within environmental Ecology and Society 25(4): 21 https://www.ecologyandsociety.org/vol25/iss4/art21/ sociology because of its reformist (rather than transformative) agenda (York et al. 2010), having essentially emerged from an ecological modernization paradigm (Mol et al. 2013). In a similar vein, while Sikor et al. (2013) observed a shift toward flowcentered approaches in global land governance, they highlighted shortcomings of flow-centered arrangements, in particular as the latter themselves may generate land uses involving new forms of social exclusion, inequity, and ecological simplification.

Critical political economy of the global environment
A considerable body of work in the broad tradition of critical political economy has addressed globalization (e.g., Evans 1997, Buckley and Ghauri 2004, Sheppard 2016. Within this tradition, literature on ecologically unequal exchange has drawn attention to the spatial asymmetric distribution of environmental harms between regions in the Global North and the Global South (Hornborg 1998, Rice 2007. Scholars of ecologically unequal exchange have challenged the Kuznets curve hypothesis, which posits an eventually decreasing environmental impact of economic growth, arguing that this model does not account for how wealthy countries export environmental harms and externalize environmental costs onto less wealthy countries, thus exacerbating global environmental disparities (Rosa and Dietz 2012, Jorgenson 2016, Givens 2018, Frey et al. 2019). This strand of literature draws on world systems theory, but it also diverges from it in explicitly focusing on environmental issues and interactions among locally based extractive and productive systems (Bunker 1984, Givens 2018, as well as exports of agricultural products (Sommer et al. 2019, Shandra et al. 2020. Scholars that link global capitalism with "glocal" environmental problems have meticulously traced the distal unsustainability effects of consumption patterns through global production chains (Dauvergne 2008, Dauvergne and Lister 2010, Clapp and Dauvergne 2011 Work in this tradition is specifically concerned with justice dimensions within telecoupled systems, and it has the potential to link research on commodity chains with work on global environmental governance and politics. Political economy perspectives offer analysis and critique of the manifold environmental impacts of globalization and consumerism. We are reminded that "[p]romoting green products and sustainable lifestyles is only scratching at the surface of a problematic capitalist world order built on ever-expanding economic growth, consumption, and markets, and efficiencies and profits realized by distancing and externalizing the environmental and social costs of producing, using, and replacing consumer goods" (Dauvergne 2010:8). In consequence, most of the authors from this strand share the position that reformist approaches are not enough for addressing the profound problems related to the current capitalist/ consumerist system and that we rather need systemic transformation.

Scalar and multilevel governance
A core challenge of telecoupling for environmental governance lies in the fact that causes and environmental consequences occur separately in space. The literature on scalar and multilevel governance explicitly deals with such spatial disconnects. Early works in environmental federalism (Oates 2004) asked at which jurisdictional level different environmental problems should be governed. Given spatial externalities, or "spillovers" of local action across jurisdictional boundaries, it was advocated that governance scales be chosen to encompass the causes and the consequences of environmental problems (Young 2002). Linking institutionalist with social-ecological thinking, scholars advocated for the redesign of institutions to fit them to environmental problems (Galaz et al. 2008), the paradigmatic example being river basin authorities to govern (environmental) issues within the confines of a river basin. This aligns with the notion of functional, problem-specific "type II" systems of multilevel governance (Hooghe and Marks 2003). Such scaleadapted governance institutions potentially bridge diverging interests (because ideally, one governing body deals with conflicts arising from spatial spillovers) and, perhaps most importantly, can reduce transaction costs once governance mechanisms are institutionalized. Such institutions may also provide legitimate decision-making structures.
In response to increasingly globalized environmental problems, where local action has remote consequences ("spacial stretching," Young et al. 2006), processes of governance "rescaling" have been observed (Andonova and Mitchell 2010). Where causes and effects of environmental issues are spatially separated, as is typical for telecoupling, simple scalar strategies such as "upscaling" governance institutions, may no longer be effective. Telecoupling thus complicates such notions of scale (Newig and Moss 2017), raising the crucial issue of where to draw boundaries in telecoupled systems (Challies et al. 2014).

Telecoupling and land system science
Studies of telecoupling have usually focused on the description of specific connections between distant social-ecological systems. The governance of telecoupling is a theme that has recently begun to be addressed within this strand of literature. Previous research on telecoupling has highlighted the considerable complexity associated with the governance of telecoupled phenomena, and identified some key research gaps (Liu et al. 2013, Challies et al. 2014. Scholars have found that telecoupled systems often present a misfit between governance institutions and the social-ecological problems that they are supposed to address, identifying the following challenges: the existence of and interplay between the social, institutional, and physical dimensions of distance; problems of coordination (between private, public, and multistakeholder initiatives, and across scales, issues, and sectors); difficulties in governing spillover effects; problems of traceability; and limited knowledge (Challies et al. 2014, Haberl et al. 2014, Lenschow et al. 2016, Eakin et al. 2017, Friis and Nielsen 2017, Liu et al. 2018. Lenschow et al. (2016) argued that a telecoupling perspective can provide focus and specificity in the application of concepts like globalization, sustainability, and environment, and thereby help to understand the variety of impacts in socialecological systems and identify governance trade-offs among different sustainability dimensions across multiple scales.
In the investigation of existing governance arrangements and challenges, Friis and Nielsen (2017) recommend a flexible and heuristic approach to telecoupled systems. This leaves the question of system boundaries open for empirical investigation, rather than assuming a given geographical entity or administrative unit. Such an approach allows research to focus on different scales, flows, and locations of telecoupled systems, depending on the specific research interest. Eakin et al. (2017) Ecology and Society 25(4): 21 https://www.ecologyandsociety.org/vol25/iss4/art21/ identify social pressure, actor capacities, and other factors as mobilizing forces that may foster to governance changes that would encompass telecoupled systems as a whole rather than merely the individual sending and receiving systems. Oberlack et al. (2018) draw links between telecoupling and polycentric governance by analyzing networks of action situations in which interactions between proximate and distant actors, as well as socioeconomic and ecological processes, cause land use change and affect the sustainability of land systems. The aforementioned methods provide ways for linking place-based analysis of land change with process-based analysis of land governance.
Despite these important contributions, it seems clear that challenges remain. For example, several authors have argued for the need to tighten feedback loops between sending and receiving systems in order to address negative externalities (Eakin et al. 2014, Haberl et al. 2014). However, Challies et al. (2014:37) argue that responses to the tightening of feedback loops "are likely to be slow relative to the flexibility and mobility of transnational capital." In summary, we identify much of value in recent and emerging literature on the governance of telecoupling, and we also recognize that this field of research continues to develop its specification of governance challenges and options.

GOVERNANCE RESPONSES TO TELECOUPLING
As our tour d'horizon of different conceptual approaches has shown, numerous forms of governance arrangements are currently in place, or are being discussed, to address the environmental externalities of telecoupling (see, e.g., Kissinger et al. 2011, German 2014, or VanDeveer 2015, for compilations of governance measures). These range from unilateral action, e.g., mandatory labelling and production standards or duty of vigilance laws, to multilateral action, e.g., technical cooperation, agreements on trade, or environmental standards, and private and multistakeholder initiatives (collaborative and deliberative procedures such as roundtables; labelling, certification, product standards, and other means of private chain governance). How, then, do such governance strategies and the different strands of literature discussing them speak to the challenges outlined above?
1. Knowledge deficits can potentially be addressed with what has been termed "informational governance" (Mol 2006). This might draw, for example, on technologies such as remote sensing and geographic information systems to precisely monitor land use change. As research in global governance and private environmental governance has shown, global sustainability reporting by large companies has been highly selective and often insufficient. Instead, "transformative transparency" might foster sustainability, by providing decision-relevant information, particularly for vulnerable and disempowered actors, and with an emphasis on information as a means to an end, rather than an end in itself (Mol 2006). In addition, the role of legitimate and widely accepted institutions as intermediaries that manage and update sources of information is crucial in informational governance (Mol 2015, Gardner et al. 2019. Moreover, consumer-or retailer-led demand for full information on production processes and places of origin could help. However, more research is also required on the informational and behavioral triggers required to induce sustainable consumption, and the literature on critical political economy may be instructive in this regard. Moreover, global frameworks on corporate social responsibility and on corporate due diligence obligations need to pay more attention not only to employment but also to wider social and environmental impacts of production patterns. Finally, more independent qualitative and quantitative research needs to be funded to more precisely establish causality as regards externalities of telecoupled flows. 2. Diverging interests will not easily be (re)aligned. Nevertheless, the GEG literature offers rich theoretical and empirical material on institutional designs to overcome state-level conflicts under more or less favorable conditions (Barkin andShambaugh 1999, Miles et al. 2002). Depending on the analytical perspective, authors either highlight institutional designs capable of reducing transaction costs or of facilitating reciprocal bargaining, or they emphasize how institutional issue framing and discursive links help to overcome diverging points of view. Recently, Young and Stokke (2020:16) advised that the "insulation of issue-specific practical cooperation of mutual interest" from conflictual themes or overarching political goals constitutes a viable strategy even in highly conflictual contexts. Turning to diverging interests among nonstate stakeholders, the literature on transnational private governance and on global commodity chains advocates collaborative multistakeholder fora, such as already existing roundtables, for palm oil, soy, and other commodities, which could have the potential to support genuine dialogue and exchange on sustainability values and interests of different actors. However, such fora have so far suffered from issues of legitimacy. Furthermore, they tend to focus on the less controversial issues, which does not contribute to addressing fundamental sustainability problems (Mol 2016). Insofar as diverging interests coincide in a given place, there may be scope for collaborative and deliberative approaches to address some of these differences. Such approaches, which rest on ideals of participation, rational and fair discourse and consensus building, may reconcile competing interests, integrate different kinds of knowledge, deliver effective environmental measures, and achieve positive environmental outcomes (Bächtiger et al. 2018), at least under particular circumstances Fritsch 2009, Newig et al. 2018). Acknowledging differences in interests and values among actors in telecoupled systems, Eakin et al. (2017) are hopeful that the recognition of telecoupling along with different kinds of pressures can overcome the prevailing distances in telecoupled systems and lead to substantive changes in governance. As a long-term strategy, one could draw on insights of environmental economists and environmental psychologists to improve informational instruments in inducing inter-regional empathy among consumers. Ultimately, however, diverging interests are likely there to stay, and constitute an important context factor in telecoupling that governance is well advised to take into account.
3. High transaction costs: The reduction of transaction costs has been one of the prime motives for building global environmental governance organizations. The more successful governance interaction there is among telecoupled actors, the easier it is to develop technological co-operation, for example, or bilateral or multilateral trade agreements that effectively address environmental issues. Given the still comparatively high transaction costs of such agreements, an option could also be to focus more strongly on action on the part of the (nation) state. The recent French Duty of Vigilance Law and the Swiss Popular Initiative on Responsible Business, which aim to transfer https://www.ecologyandsociety.org/vol25/iss4/art21/ international principles on business and human rights into state law, are a case in point (Bueno 2019). Public initiatives of this sort address existing governance gaps by pressuring private actors (corporations) to assume responsibility for any negative externalities associated with their supply chains. Such approaches reduce transaction costs by acknowledging and drawing on the fact that for transnational private actors it tends to be easier to operate across scales and jurisdictions than for states, which are to a greater extent limited by their jurisdictional boundaries. Likewise, established forms of international decision-making may provide for stronger environmental regulatory frameworks, e.g., through UN rules, which would influence and facilitate decision making in those more complex forms of roundtables or bi-/ multilateral agreements. In addition, the role of civil society might be crucial for improving collaboration and overcoming social and institutional distances across interconnected regions. Scholars have argued that transformation in governance arrangements is more likely when "shadow networks," social networks of actors who share values and priorities, are in place and can be mobilized (see Eakin et al. 2017). 4. A weak legitimacy base is an important issue for collaborative and/or multistakeholder initiatives and roundtables, which tend to replicate existing biases and power imbalances. Distinguishing more strongly between deliberative and decision-oriented fora could be one possibility. The former would comprise inclusive roundtables that mostly serve the function of exchange of knowledge and values as well as learning. The latter would comprise roundtables tasked with decision making, and include governmental actors with clear political mandates, thus providing a stronger role for state-based governance (Lenschow et al. 2016). Generally, a closer link between multistakeholder initiatives and public policy could help avoid capture by powerful actors (Challies 2013). This may include embedding multistakeholder initiatives more explicitly into overarching international frameworks such as United Nations conventions. In addition, scholars of private governance have advocated for a repoliticization of multistakeholder initiatives by opening up certification schemes to greater scrutiny, including the politics that otherwise remain embedded in the back stage of the standards' processes (Fortin 2013). Looking to the literature on critical political economy and ecologically unequal exchange we can anticipate that underlying normative and justice dimensions will need to be explicitly addressed if the legitimacy of these platforms is to increase. 5. Policy incoherence and fragmentation: Work under the auspices of the IHDP highlighted how "interplay among institutions can reflect conscious or unconscious, proactive or reactive, and successful or unsuccessful efforts by policy-makers to develop potential synergies with other institutions while avoiding duplications, redundancies, and conflicts" (cf. Mitchell 2013:6). This insight has influenced a so-called third wave of GEG research looking at policy mainstreaming or integration, policy coherence, and nexus politics (see above). The most visionary, but perhaps idealistic, solution might be earth system governance (Biermann 2014). Although this may likely be too unspecific to tackle telecoupled issues, attempts to intervene in the regulatory sphere of linked institutions will also be relevant for telecoupled phenomena, one option being (international) environmental agreements that allow for trade restrictions where environmental norms are not met. Although most research assumes the dominance of the world trade regime (and there are calls for a greening of the GATT/WTO), Gehring (2007) highlights how international environmental agreements have, under specific circumstances, e.g., the rulings of the appellate body, positively influenced the WTO, which accepted these rules as legitimate. Unless such rules are formulated, the "nondiscriminatory credo" of the WTO applies, and the organization will likely continue to enable telecoupling through promotion of trade with little regard of environmental impacts. The implication seems to be to continue challenging the prevailing free trade paradigm in, ideally international rather than bilateral, environmental agreements. This also means that it may be necessary to embed telecoupled relations in an international normative setting. Attempts at such "orchestration" (Abbott and Snidal 2009) have been emerging for some time but have had limited impact so far (Schleifer 2013). To give a rare example of such orchestration, in the biofuel sector, the European Union assumed an orchestrating role by formally recognizing selected private standards and by making the certification under them mandatory for all imported biofuels (Schleifer 2013). Schleifer concluded that the EU orchestrators could have done a better job by limiting the number of private standards to the most stringent ones. Despite the EU's rather weak orchestrating role in the biofuel sector, disputes in the WTO from the biofuel exporting states Argentina and Indonesia against the EU member states are still pending.

CONCLUSIONS
In this paper, we have argued that the emergent concept of telecoupling offers a common language and valuable analytical lens for understanding environmental governance challenges arising out of the phenomenon of global inter-regional connectedness. Although the distribution of the impacts of production, trade, and consumption in a globalizing world has been a focus of research from a number of different disciplinary perspectives, we suggest that telecoupling denotes a particular blind spot in this body of work.
In this paper, we have taken stock of different areas of work that speak to some extent to aspects of the phenomenon, and together provide a useful point of departure for developing a more coherent approach to governance of telecoupling. Of particular importance here is the observation that despite all of the work on local, transboundary, and global sustainability governance, there is no established body of literature that deals explicitly with telecoupling as a particular form or configuration of environmental or sustainability problem. Furthermore, the existing literature, which is all to a certain extent relevant to understanding the problem, do not appear to take stock of each other in any systematic way. In this sense, they seem to exist largely as "islands of theorizing" in relation to this topic.
The five governance challenges we identified, knowledge deficits, diverging interests, high transaction costs, weak legitimacy base, and policy incoherence and fragmentation, underscore the need to address telecoupled issues in a specific way if environmental governance is to be globally effective. Emerging from this work, we see the need for further research on the question of governance in relation to telecoupling. This is needed both in order to address the gaps we have described in the literature and in research to date, but also in order to foster more efficient and effective (global) environmental governance solutions. https://www.ecologyandsociety.org/vol25/iss4/art21/ First, empirical research should address more systematically the question of what kind of telecoupled issues are likely to give rise to what kinds of governance challenges. Second, we would encourage systematic, interdisciplinary exploration of governance options, by the state, either unilaterally, in collaboration with others, through international conventions, or in collaboration with nonstate actors; and by multistakeholder initiatives and networked approaches. There is a need to better understand which of these are likely to tackle the various governance challenges identified here.
Third, stronger links should be established to scholarly work on modes of governance. What should be the role of collaborative and participatory approaches (Voß et al. 2007, Lange et al. 2013, and which governance challenges are they likely to address effectively? How can collaborative and participatory governance, which works well on rather local levels, be applied to globally telecoupled governance settings? Fourth, it is important to acknowledge that telecoupling is typically embedded in existing governance structures that may intentionally or unintentionally create, foster, or maintain telecoupled systems (Newig et al. 2019). With this in mind, how can policies be designed in a way that telecoupling is sustainable from the start? Furthermore, how should governance instruments be applied given a recognition that they will not operate in a vacuum, but rather interact in complex ways with multiple other instruments governing intersecting flows?
Fifth, future research should (more explicitly than could be done here) address the likely trade-offs between the different possible governance solutions that we discuss here. Sixth, even though governance of telecoupling-induced sustainability problems may not operate in a vacuum, it is important to understand why there are governance gaps regarding certain telecoupled flows or sustainability impacts. Demonstrating the existence of such governance gaps and understanding the reasons, potentially because of a combination of the governance challenges we outlined in this article, may help to develop appropriate governance solutions.
Finally, most of the governance literature reviewed here can be classified as "reformist." The general take is that given the unsustainable nature of many telecoupled issues, governance responses need to alleviate issues of unsustainability (or, in the light of the previous paragraph, "design" telecoupling to be sustainable in the first place). What may get lost in these considerations is the need for more fundamental transformation toward sustainability, rather than mere reform. Arguably, both should have their place in the debate on governing global telecoupling toward environmental sustainability.
We hope that our conceptual structuring of the governance literature as it pertains to telecoupling can guide more systematic empirical and conceptual research in this emergent field. This is important, we argue, if work on governance for sustainability is to tackle effectively the quite specific inter-regional linkages and interdependencies that characterize environmental problems in a telecoupled world.

__________
[1] The scholarly database Scopus lists two publications with telecoup* in any search field pre-2013, and 161 publications in 2018 alone, with substantial increases with every year (search performed on 21 August 2019).