It is often thought that local governments in the Global South have less influence over climate city networks than those from the Global North. We question this by examining how different climate city networks relate and function as interconnected, yet independent, decision-making centers. We explore the extent to which this polycentric system overcomes the assumed exclusivity and inequality of these networks. We analyze twenty-two climate city networks using qualitative comparative analysis to classify the networks with a majority of members from either the Global North or the Global South based on conditions related to their context, diversity of members, and degree of homogeneity. We find that climate city networks overcome North–South dependencies through targeted support reflecting the local needs and conditions of city members. This diversity of tailored alternatives for cities provides equality and inclusivity at the polycentric system level, despite showing inequality and exclusivity at the network level.

This article explores the relations between movement, the environment, and governance through the cases of cruise tourism, plastics in the oceans, and environmental migration. It does so by means of a mobilities perspective, which has its origins in sociology and geography. This perspective shifts the analytical focus toward mobilities and environmental problems to understand their governance, as opposed to starting with governance, as many global environmental governance studies do. We coin the term environmental mobilities to refer to the movements of human and nonhuman entities and the environmental factors and impacts associated with these. Environmental mobilities include movements impacting on the environment, movements shaped by environmental factors, and harmful environmental flows, as we illustrate by means of the three cases. We demonstrate how zooming in on the social, material, temporal, and spatial characteristics of these environmental mobilities can help illuminate governance gaps and emerging governance practices that better match their mobile nature. In particular, a mobilities lens helps to understand and capture environmental issues that move, change form, and fluctuate in their central problematique and whose governance is not (yet) highly or centrally institutionalized.

Climate change threatens to cause the largest refugee crisis in human history. Millions of people, largely in Africa and Asia, might be forced to leave their homes to seek refuge in other places or countries over the course of the century. Yet the current institutions, organizations, and funding mechanisms are not sufficiently equipped to deal with this looming crisis. The situation calls for new governance. We outline and discuss in this article a blueprint for a global governance architecture for the protection and voluntary resettlement of climate refugees—defined as people who have to leave their habitats because of sudden or gradual alterations in their natural environment related to one of three impacts of climate change: sea-level rise, extreme weather events, and drought and water scarcity. We provide an extensive review of current estimates of likely numbers and probable regions of origin of climate refugees. With a view to existing institutions, we argue against the extension of the definition of refugees under the 1951 Geneva Convention Relating to the Status of Refugees. Key elements of our proposal are, instead, a new legal instrument specifically tailored for the needs of climate refugees—a Protocol on Recognition, Protection, and Resettlement of Climate Refugees to the United Nations Framework Convention on Climate Change—as well as a separate funding mechanism.