On its long, lazy journey from its source in Uganda to the delta in lower Egypt, the White Nile passes through the Sudd Wetland in South Sudan. This is Africa’s largest freshwater wetland.
Here, the river widens, and its flow slows dramatically. Water can take a year to pass through the wetland’s swamps and grassland, and up to half of it evaporates in the process.
As it flows, the water sustains the million people who live there,…


