After two decades of working his farm in northwestern Nigeria, Umaru Muazu now struggles to find water for his crops.
A murky puddle is all that remains of a river near his 5-hectare farm and those of others in this community in arid Sokoto state. Because the 62-year-old Muazu can't afford to dig a well to keep crops like millet and maize from withering, he might abandon farming.
