Return To Earth by Alan Gasparutti (leveled readers .txt) 📕

A group of people, former inhabitants of Earth, return to see it in it's current status. As they observe the planet from above, they ascertain the good, the bad, and the down-right ugly scenarions taking place in today's society.
A small team visits Earth, where they enhance current technology and develop new forms of green energy. Showing man how things should be done.