Nature and EnvironmentEco-at-Africa - Eco@AfricaTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment12/16/2016December 16, 2016This week, we find out how tree stumps can slow desertification, go in search of WWII bombs off the coast of Germany, visit orphaned chimps in Zambia and ask how eco-friendly Christmas trees are.https://p.dw.com/p/2UJmZAdvertisement