Why is Africa building a Great Green Wall? BBC News

Eleven countries are planting a wall of trees from east to west across Africa, just under the southern edge of the Sahara desert.
The goal is to fight the effects of climate change by reversing desertification.
A film by Amelia Martyn-Hemphill for BBC World Hacks.

Please subscribe HERE http://bit.ly/1rbfUog

World In Pictures https://www.youtube.com/playli....st?list=PLS3XGZxi7cB
Big Hitters https://www.youtube.com/playli....st?list=PLS3XGZxi7cB
Just Good News https://www.youtube.com/playli....st?list=PLS3XGZxi7cB