A sun goddess, hundreds of devotees – and polluted water: the Nigerian festival threatened by gold mining

Each year, people from across the world gather in a grove sacred to the Yoruba goddess Osun to be healed, conceive or realise their deepest wishes. But toxic lead, mercury and cyanide is leaching into the river 7Devotees in white clothing line the riverbank, praying as they carry offerings of fruit, kola nut and sacrificial animals in supplication to Osun, the Yoruba goddess of fertility, beauty a