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South Sudan May See the First Permanent Mass Displacement Due to Climate Change


Protracted flooding has engulfed the country’s Sudd region due to more water entering the Nile upstream, which is driving conflict and disease and is potentially leaving the region uninhabitable.

Herders move their cattle to higher ground as flood waters rise, while earthen walls made of compressed mud protect houses and infrastructure. Community elders who spoke to our colleagues at the medical humanitarian aid charity Médecins Sans Frontières said that fear of conflict and violence inhibited them from moving to regions of safe ground they had found during a period of major flooding in the early 1960s. However, climate models indicate increases in precipitation in the catchment, as well as more frequent positive phases of the Indian Ocean Dipole (a weather phenomenon similar to El Niño in the Pacific), which caused the record rainfall in 2020 and 2023.

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