A Lake’s Limits

In this parched swath of Kenya’s Great Rift Valley, Lake Turkana remains a vital source of food for 90,000 people. It draws 90 percent of its freshwater and nutrients from the Omo River, but upstream, Ethiopia has built one of Africa’s largest dams, the Gilgel Gibe III, which, along with irrigation projects, is expected to limit inflow to the increasingly saline lake.

Map of Lake Turkana
NGM Staff; Meg Roosevelt; Andrew Umentum

Sources: Sean Avery; Ethiopian Wildlife Conservation Authority; Ethnologue: Languages of the World; Human Rights Watch; IHS; International Rivers; Radar Technologies International; Frank Brown, University of Utah