
The Khartoum Nile-Confluence Mixing
15 Mar 3min

The Bissau Cashew-Grove Tannin-Staining
15 Mar 3min

The N'Djamena Lake-Chad Receding Silt
15 Mar 3min

The Mbabane Granite-Scour Erosion
15 Mar 3min

The Beira Cyclone-Sediment Burial
15 Mar 3min

The Niamey Harmattan Silica-Pitting
14 Mar 3min

The Nouakchott Atlantic-Brine Corrosion
14 Mar 3min

The Freetown Laterite-Road Compression
14 Mar 3min






















