 | | 4.1 Tied ridging - Domboshawa, Zimbabwe |
 | | 4.2 Freshwater augmentation - cloud seeding, Zimbabwe |
 | | 4.3 Tidal irrigation, the Gambia |
 | | 4.4 Spring protection - Mukono district, Uganda |
 | | 4.5 Water augmentation - Laikipia district, Kenya |
 | | 4.6 Recycled water - Achimota Brewery, Ghana |
 | | 4.7 Water recycling - Tarkwa gold fields, Ghana |