From the beginning of this book we have consistently emphasized that our multi-faceted understanding of states cannot be simplistically equated with a nationally scaled and territorially bound institution. Despite this stated aim, in many of the preceding chapters we have described a series of ways in which state natures have been produced at a national level. Whether it has been through water supply networks, national mapping and land-use surveys, nationalized pollution monitoring networks, or nationwide judicial frameworks, we have described how nature has been framed at a distinctly national scale. While exploring the national framing of nature we have seen how the national centralization of ecological knowledge and the territorial framing of the natural world have transformed the social experience, understanding, and ability to transform nature. A closer inspection of our descriptions of the nationalization of nature within the modern state, however, revels that the process of nationalization is never quite as national as it may seem. Attempts to produce a national picture or vision of nature are always based upon more localized practices and conventions than may be immediately apparent. It is our contention that attempts to manage and regulate nature through the multifarious processes of nationalization are best conceived of as the unfulfilled desire of numerous state regimes. This statement has two implications. First, it indicates that nationally based strategies for the control and regulation of nature are only one among a series of scales in and through which states can potentially manage nature. Secondly, it suggests that states could develop other (non-national) territorial strategies in their evolving historical relationships with the natural world. This final chapter is devoted to exploring these alterative sites and moments of contemporary state–nature relations. We begin by considering the rise of sustainable cities as alterative (‘post-national’) territorial strategies in and through which states are attempting to manage contemporary social relations with nature. As sub-national, decentralized territorial units, sustainable cities provide an interesting spatial and institutional perspective on contemporary manifestations of state nature. Drawing on the example of Australia’s Sustainable Cities Inquiry, we consider how states attempt to regulate nature through the control and administration of urban space.