This is accomplished with a clever game scheme and a cast of characters known as the Eco-Angels and the Schmutzies .
Players select their favorite tokens and spin to proceed.
The object of the game is to move from start to finish, collecting trees along the way. Trees are awarded for answering questions correctly and when landing on certain spaces that result in drawing from a stack of cards. However, landing on Schmutzie spaces or answering incorrectly can result in a loss of turn or having to go back spaces. The Schmutzies, on the other hand, do not abide by such rules and have left their stains on the land.