The ambitious green-belt project aims to create a series of contiguous forests that would run for hundreds of miles across Spain's southern region — but it may take decades.
The 15 kilometer (9.3 mile) wide Great Green Wall project stretches over 7,775 km from Senegal on the Atlantic to Eritrea on the Red Sea. The aim was to curb the Sahara Desert's spread. But major challenges remain.
Forests are shrinking around the world, but Europe is bucking the trend, with France at the heart of this reblooming effort. A new €72-million project in Paris plans to transform the City of Light into the City of Green.
