15:32World Business ReportFirst broadcast 17/02/2021 15:32 GMT : The Great Green WallBBC World Service Duration: 27 minutes Wed 17th Feb 2021, 15:32 on BBC World Service OnlineAvailable for over a yearListen nowCan the Great Green Wall in northern African save fragile communities? Show more GenresFactualMoneyFormatsBulletinsBrandWorld Business Report Source: BBC Online