Most research on global governance has focused either on theoretical accounts of the overall phenomenon or on empirical studies of distinct institutions that serve to solve particular governance challenges. In this article we analyze instead "governance architectures," defined as the overarching system of public and private institutions, principles, norms, regulations, decision-making procedures and organizations that are valid or active in a given issue area of world politics. We focus on one aspect that is turning into a major source of concern for scholars and policy-makers alike: the "fragmentation" of governance architectures in important policy domains. The article offers a typology of different degrees of fragmentation, which we describe as synergistic, cooperative, and conflictive fragmentation. We then systematically assess alternative hypotheses over the relative advantages and disadvantages of different degrees of fragmentation. We argue that moderate degrees of fragmentation may entail both significant costs and benefits, while higher degrees of fragmentation are likely to decrease the overall performance of a governance architecture. The article concludes with policy options on how high degrees of fragmentation could be reduced. Fragmentation is prevalent in particular in the current governance of climate change, which we have hence chosen as illustration for our discussion. (c) 2009 by the Massachusetts Institute of Technology.

The United Nations conference in Rio de Janeiro in June is an important opportunity to improve the institutional framework for sustainable development.

Transnational rule-making organizations have proliferated in the area of sustainability politics. In this article, we explore why these organizations share a set of core features that appear overly costly at first sight. We argue that norms that evolved out of the social interaction among transnational rule-making organizations account for this phenomenon. Thus, in the early 1990s, an organizational field of transnational rule-making has gradually developed in the field of environmental politics. Responding to a broader social discourse about global governance that stressed a need for innovative forms of cooperation among different societal sectors, this organizational field gained in legitimacy and strength. A set of commonly accepted core norms, the increasing density of interaction among the field’s members, and the success and legitimacy ascribed to the field’s key players by the outside world helped to solidify the organizational field until it eventually developed a ‘life of its own’.

This perspective discusses nine conditions for enhancing the performance of multistakeholder partnerships for sustainable development. Such partnerships have become mainstream implementation mechanisms for attaining international sustainable development goals and are also frequently used in other adjacent policy domains such as climate change, health and biodiversity. While multistakeholder arrangements are widely perceived as a positive contribution to addressing global change, few studies have systematically evaluated the existing evidence for their positive performance. This poses an urgent and important challenge for researchers and practitioners to understand and improve the effectiveness of partnerships, in particular since their popularity increases despite their past track record. The recommendations presented are based on own research, a literature survey and discussions with a large number or international Civil Society Organizations at two occasions during 2014. This article proceeds as follows: first, we define multistakeholder partnerships, outline their rational and summarize available assessments on partnership success; second, we provide a set of concrete recommendations based on lessons-learned from over 10 years of scholarship; and third, we conclude with some reflections on the future of multistakeholder governance for sustainability.

Abstract. With this paper we present an analysis of sixty transnational governance initiatives and assess the implications for our understanding of the roles of public and private actors, the legitimacy of governance 'beyond' the state, and the North-South dimensions of governing climate change. In the fi rst part of the paper we examine the notion of transnational governance and its applicability in the climate change arena, refl ecting on the history and emergence of transnational governance initiatives in this issue area and key areas of debate. In the second part of the paper we present the fi ndings from the database and its analysis. Focusing on three core issues, the roles of public and private actors in governing transnationally, the functions that such initiatives perform, and the ways in which accountability for governing global environmental issues might be achieved, we suggest that signifi cant distinctions are emerging in the universe of transnational climate governance which may have considerable implications for the governing of global environmental issues. In conclusion, we refl ect on these fi ndings and the subsequent consequences for the governance of climate change.

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As countries negotiate a new climate agreement for the United Nations climate conference in December 2015, a groundswell of climate actions is emerging as cities, regions, businesses and civil society groups act on mitigation and adaptation, independently, with each other and with national governments and international organizations. The Paris conference provides a historic opportunity to establish a framework to catalyse, support, and steer these initiatives. Without such a framework, 'bottom-up' climate governance runs the risk of failing to deliver meaningful results. Social science research highlights the need for a comprehensive approach that promotes ambition, experimentation and accountability, and avoids unnecessary overlaps. This article specifies functions and design principles for a new, comprehensive framework for sub-and nonstate climate actions that could provide effective coordination.

This article provides a first step towards a better theoretical and empirical knowledge of the emerging arena of transnational climate governance. The need for such a re-conceptualization emerges from the increasing relevance of non-state and transnational approaches towards climate change mitigation at a time when the intergovernmental negotiation process has to overcome substantial stalemate and the international arena becomes increasingly fragmented. Based on a brief discussion of the increasing trend towards transnationalization and functional segmentation of the global climate governance arena, we argue that a remapping of climate governance is necessary and needs to take into account different spheres of authority beyond the public and international. Hence, we provide a brief analysis of how the public/private divide has been conceptualized in Political Science and International Relations. Subsequently, we analyse the emerging transnational climate governance arena. Analytically, we distinguish between different manifestations of transnational climate governance on a continuum ranging from delegated and shared public-private authority to fully non-state and private responses to the climate problem. We suggest that our remapping exercise presented in this article can be a useful starting point for future research on the role and relevance of transnational approaches to the global climate crisis.