The Effects of Climate Change on Pastoralism in East Africa: A Case Study of South Sudan.

Abstract:

Climate change is a significant threat to pastoralism in East Africa, particularly in South Sudan, where rising temperatures and increasingly frequent extreme weather events such as prolonged droughts and severe floods have disrupted traditional livelihood systems. Increasing rainfall variability has made it difficult for pastoralists to predict seasonal patterns, undermining livestock production, worsening food insecurity, and intensifying socio-economic vulnerabilities. This study examines the impacts of climate change on pastoralist livelihoods in South Sudan. A mixed-method research design was applied, integrating quantitative climate data analysis with qualitative evidence drawn from peer-reviewed literature, humanitarian agency reports, government documents, and meteorological records. Climatic trends were assessed through temperature and rainfall variability, while insights from organizations such as FAO, UNDP, and other UN agencies highlighted the consequences of recurrent climate shocks, including livestock mortality, displacement, and reduced access to food and grazing resources. A ten-year comparative analysis (2010–2025) was conducted to trace evolving patterns of climate stress and their implications for pastoralist resilience. Findings reveal increasing climatic unpredictability across the region. Higher-than-average rainfall has triggered flooding that destroyed grazing land and forced widespread displacement. In South Sudan alone, floods between 2019 and 2024 affected more than 1.4 million people, with Jonglei, Lakes, and Unity states most severely impacted. In 2019, approximately 800,000 cattle, sheep, and goats were lost, and subsequent years saw continued livestock deaths due to persistent flooding and disease outbreaks. Diminished milk production, shrinking pastureland, and heightened competition for elevated grazing areas have further intensified food insecurity and resource-based conflicts. The study concludes that pastoral systems must adapt rapidly to ensure long-term sustainability. Key recommendations include diversifying household income sources, strengthening water and rangeland management, and improving conflict-resolution mechanisms. As climate pressures intensify, pastoralist communities require coordinated support from local, state, and national institutions to safeguard their livelihoods and cultural heritage.