Water insecurity may precipitate interpersonal conflict, although no studies to date have rigorously examined these relationships. We examined relationships between household demographics, water insecurity, regional conflict, and interpersonal conflict over water. Using survey data from eight sub-Saharan African countries, we found that interpersonal conflict within and outside the home is associated with multiple domains of water insecurity, particularly accessibility. Furthermore, we found that higher levels of remote violence and protests are associated with greater within household conflict, whereas riots and violent armed conflict are associated with greater conflict between neighbors. Our findings expand upon the current literature by examining factors affecting interpersonal conflict over water, which may become increasingly important as precipitation patterns and land temperatures change in this region.

Globally, populations are increasingly located in areas at high risk of climate change impacts. Some populations lack the agency to move out of harm’s way, leading to involuntary immobility. The climate risks these populations face are insufficiently addressed in climate policy and disaster planning. While policy and planning should be data-informed, the lack of appropriate data should not limit governments and institutions from taking action to reduce the risk of involuntary immobility. Incorporating involuntary immobility within the broader sustainable development goals of climate action and safe, orderly, and regular migration may substantially reduce the risk of involuntary immobility.

Urban populations globally are expected to increase by approximately 2.5 billion by 2050. Much of this growth is taking place in African cities, where about 40% of Africans live in urban areas with populations of less than 250,000. In many of these cities, rapid urban growth has outpaced economic and social development, resulting in high levels of urban poverty and widespread food insecurity. As one response strategy, urban households may leverage their linkages with rural areas and other towns or cities to supplement their food consumption, for example through food remittances or food purchases from remote retailers. While this strategy has been found to occur among inhabitants of large cities where existing research on urban food systems and urban food linkages with other areas has focused, the dynamics in smaller cities are likely different. In this paper, we draw on data from 837 surveys collected in 2021 to investigate household food sourcing strategies across 14 urban areas in Zambia with populations less than 100,000. We find that rural-urban food linkages are dominated by grains while urban-urban food linkages are predominantly composed of higher value foods. Our data further suggest that urban area characteristics explain more of the variability in food sourcing behaviors than household level characteristics, and that urban food purchasing preferences in secondary urban areas are sensitive to the food retail landscape available to households. These relationships highlight the disparate role that rural and urban linkages play across cities of different sizes. They suggest a need for food-related policies to consider diverse urban food systems among smaller cities.

Since the seminal 2012 Special Issue of the Journal of Peace Research about climate change and conflict, at least 35 review papers on the topic have been published. To our knowledge, none of these reviews focused on water and conflict specifically. In order to address this research gap, the present article conducts a systematic review of scholarship examining the linkages between water and conflict, focusing on quantitative studies using secondary data sources. This review focuses on the African continent given projections about the intersection between water issues and conflict in this region, as well as the popularity of this portion of the world in studies of climate change and conflict. We discuss the findings of papers reviewed and propose six avenues for future research. As research about this topic advances, it will require attention to nuances in data processing, integration, and modeling across spatial and temporal scales, if the outcomes of this body of scholarship are to be leveraged to guide the decision making of governing bodies.