Harro van Asselt argues in The Fragmentation of Global Climate Governance (2014) that while the United Nations Framework Convention on Climate Change (UNFCCC) is responsible for many global climate initiatives, other initiatives have developed outside of it and are not directly coordinated with the UN framework. This governance fragmentation is the key focus of his analysis. The book contributes to the growing emphasis on the diversity of actors involved in global climate governance and the importance of examining how formal and informal institutions interact.
While van Asselt emphasizes that his purpose is not to provide “ideal-type solutions” regarding regime interactions, the benefits of policy coherence rather than fragmentation seem to be assumed along with an emphasis on institutional coordination as a solution to regime conflicts. While both the pitfalls and promises of fragmentation are described, the shortcomings are discussed in greater detail than any positive outcomes of fragmentation. Open questions include, does conflict in regime interactions undermine policy goals? Or does overlap provide valuable duplication? The Fragmentation of Global Climate Governance provides a foundation for studying such interactions in global climate governance and encourages further analysis of interactions between hard and soft law, the role of non-state actors, as well as among climate regimes at different levels of governance.
Drawing on concepts from international law and international relations, the analytical framework provided by the author examines multiple features of regime interaction, including relationships between hard and soft law, causal mechanisms, intentionality and consequences (conflict, synergy, neutral).
Empirical chapters offer comparative case studies. Each begins with the UNFCCC as the dominant global climate regime, and then compares it to multilateral clean technology agreements (e.g., Asia-Pacific Partnership on Clean Development and Climate), other global environmental priorities (e.g., Convention on Biological Diversity) and different branches of international law relevant to climate change (e.g., the World Trade Organization). Van Asselt focuses on the consequences (conflicts or synergies) of the ways in which these regimes interact.
His analysis of regime interactions suggests a number of parallel concerns at the international policy scale, as well as interactions across local and state levels. Van Asselt might have extended the findings from his three regime interaction cases to these parallel concerns, including interactions among more than two regimes as well, but these are not discussed in the present volume.
With the 2015 Paris Climate Accord, regime interactions––in particular those led by non-state actors and subnational governments––may be of even more importance. With greater flexibility due to the pledge and review process, the interactions between soft and hard laws and between regimes established in different sectors may require us to extend our understanding of the impacts of regime interactions for global climate governance.