The Great Wall... A Great African Project

No, I didn't make a mistake, I didn't confuse it with the Great Wall of China! But listening to France Inter last week (yes, I listen to France Inter), I told myself that this project was worth telling, because fighting climate change has become a priority. And a project that combines ecology with humanity has its place here!!

The Great Green Wall will be a multi-species vegetation belt, 15 km wide, connecting Dakar to Djibouti over a length of approximately 7000 km (11 countries are concerned).
The Great Wall will be, as much as possible, a continuous strip but may take certain contours to avoid obstacles (watercourses, rocky soils, mountains and rocky hills) or to reach inhabited areas.

Basically, the objective is to combat desertification in the Sahel region. And this project was launched on June 17, 2010, during the World Day to Combat Desertification and Drought (if that's not a sign).

Unfortunately, this project is not necessarily well supported by scientists (we should ask Claude Allègre for his opinion).
For example, Ali Haïdar (the leader of the Federation of Ecologists of Senegal) says, "Farmers don't have enough seeds or no seeds at all... for me, the Green Wall is a utopia, a dream to divert more money" Source
Or Marc Bied-Charreton (president of the French Scientific Committee on Desertification) says, "What is progressing is the de-vegetation of soils. Therefore, it is necessary to protect all soils and not to build barriers of this type, which are doomed to failure" Source

So what to make of it? Is it completely utopian or feasible?
As for me, because I believe in humanity, I think we must act, so even if the project is not good or very unlikely, it has the merit of existing and doing something... so yes, there are undoubtedly things that can be improved (because no project is perfect) but instead of dividing over this subject, let's move forward together so that climate change does not claim even more victims!

++ The Great Green Wall