Scientific American Content | Global Follow Giant ‘Gullies’ in the Earth Threaten Cities in Africa amid Rapid Urbanization Hundreds of thousands of people are at risk of losing homes, businesses—and lives—as giant “gullies” expand into cities across Africa https://www.scientificamerican.com/article/giant-gullies-in-the-earth-threaten-cities-in-africa-amid-rapid-urbanization/ scientificamerican.com
