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.
wikipedia page here
Since 2005, the Great Green Wall concept has developed considerably. Lessons learned from the Algerian Green Dam[4] or the Green Wall of China led to understand the need of an integrated multi-sectorial approach for sustainable results.[5] From a tree planting initiative, the Great Green Wall for the Sahara and the Sahel has evolved to a development programming tool. In 2007, during the eight ordinary session of the Conference of Heads of State and Governments held on January 29 and 30, 2007 in Addis-Ababa (Ethiopia), African Heads of State and Government endorsed the Great Green Wall for the Sahara and the Sahel Initiative with the objective of tackling the detrimental social, economic and environmental impacts of land degradation and desertification in the region.[3]
UKGuardian article (2012).
AlJ video:
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