The Great Green Wall will span 11 countries and uses acacia trees! I hope I get a chance to see it when it gets growing.
Greening the Sahara, who hasn't dreamed of that?
As a society, we devalued farming as an occupation and encouraged the best students to leave the farm for 'better' jobs in the city. We emptied America's rural counties in order to supply workers to urban factories. Michael Pollan