Nothing is useless, you’ll must see ways of using it for some important work. Countries with large expanse of desert land can make good use of it for some useful projects that would yeild what could help their citizen, Egypt applied this and it is helping them in various ways. Nothing is to be wasted or despised. Desert lands , water logged area, forests, hill and valleys can be very useful if the right steps are taken.
Psalm 30:10. Hear, O LORD, and be gracious to me! O LORD, be thou my helper!”