All That Was Old Is New Again — Mark Griffin

Bizby and Slipper have just been to a planet where all the natural resources have been used up. “It was really awful,” said Bizby. They don't want this to happen at home so they round up all the kids and teach them that it's fun to recycle and they can even make money doing it. They do such a great job of cleaning up the town that the mayor gives them an award. This book teaches civic responsibility in a way that makes it fun.