This story was originally published by Yale Environment 360 and appears here as part of the Climate Desk collaboration.
Seen from space, the Sudd swamp is a giant green smudge where the White Nile, one of the great river’s two main branches, spreads out across flat arid land, forming myriad back channels that are often covered in floating vegetation. Africa’s largest freshwater wetland permanently occupies roughly 3,500 square miles in an…