Nature and EnvironmentAfricaTime for action on Africa's Great Green WallTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentAfrica06/16/2021June 16, 2021Haidar el Ali, the man behind Senegal's part of the Great Green Wall, says it's time to get the ecological project back on track. Currently, the initiative to plant trees across 11 African countries is 10 years behind.https://p.dw.com/p/3v2oyAdvertisement