the first great wall built by man, the Chinese one, arose for military reasons. The new great wall that man is building has all other ambitions.
The Great Wall of Green will be even longer than the original brick and is actually a project of reforestation of Central Africa, which cuts across the center of the continent and is aimed at stopping the advance of the deserts.
The idea of creating a "green wall" of trees on the southern border of the Sahara desert in order to stem its advance actually dates back to the middle of the last century, proposed the first time by the British activist Richard St. Barbe Baker.
But it is only in the two thousand years that the project has taken shape, through the dialogue of various international and local bodies, the institutions of the many countries involved in the project and institutions of all kinds.
The wall, in fact, once completed, will cross 11 different countries, will be eight thousand kilometers long and eleven wide.
Since 2007 the wall has begun to walk, bordering the desert borders with acacias, plants chosen for their particular resistance to the arid climate.
But environmental protection is not the only purpose of the initiative and perhaps not even the most important. Indeed, the advance of the Great Wall of Green is creating thousands of jobs in all the regions it crosses. Its true purpose is to retrain those areas and put them back on foot economically.
In fact, on the one hand the lands return lush, on the other hand the people are directly employed in the reforestation work.