Unpacking the heterogeneity of climate city networks

In recent decades, climate city networks, understood as formalized subnational governance networks that have climate change as their focus, have emerged, linking cities to the global climate governance regime and helping them to take climate action locally. Such city networks are considered an essential aspect of urban climate policy and governance. Scholarship on climate city networks has illustrated that such networks can no longer be understood as homogenous groups of organizations; rather, they show heterogeneity in how they seek to attract and engage with member cities. In this article, we unpack this heterogeneity and interrogate the various ways in which climate city networks attract and engage with their members. We are particularly interested in understanding what typifies climate city networks with an active member base. In studying 22 real-world climate city networks, we uncover five distinct types of networks with an active member base. The typology illustrates the rich, but bounded, variety of climate city networks, and helps to clarify how climate city networks can be effective in encouraging their member cities to take local climate action.