Scientific American
Hundreds of thousands of people are at risk of losing homes, businesses—and lives—as giant “gullies” expand into cities across Africa…
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Giant ‘Gullies’ in the Earth Threaten Cities in Africa amid Rapid Urbanization
Elida Drews
02:20
Hundreds of thousands of people are at risk of losing homes, businesses—and lives—as giant “gullies” expand into cities across Africa…
