This is The ChangeUnderground for the 28th of February 2022.
I’m your host, Jon Moore
Decarbonise the Air, Recarbonise the Soil!
Way back on the 2nd of October 2017 in episode 84, I first reported on the Great Green Wall. From that episode:
So this green wall is fifteen kilometer deep reafforestation program along the southern boundary of the Sahara desert. It will eventually stretch from the Atlantic to the Indian Oceans. The idea to build a barrier against the southern movement of the Sahara.
So that’s the what and the why but what about does it work?
So far Senegal is by far the most advanced with the planting and maintaining of the Green Wall. They have planted 11 million trees. The effect has been to reduce wind erosion, provided shade and increased microclimate humidity. But more than, formerly dry wells have re-filled, this has allowed gardens to be planted again, people to be fed and communities to flourish.
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