An instructive game about the environment and it's influence.
Year of publication is 1995 by "Foundation The Natural Path". Came into Guinness Book of Records after been played simultaneously by 47160 students and teachers in the category "most players of the same game during one day".
You go around the world (=the board) stepping on question spaces. If you answer questions correctly, you'll step up on "environment meters" for 1-4 corresponging environment categories, otherwise you step down. You also get a money reward for correct answers.
When you have collected enough money, you may move to "threat space" and pay to remove it and get a plus on your "environment meter". The spaces will then be covered by "sun counters", to mark that they are handled.
When all threat squares has been covered by suns, you count the points on the environment meters. You count the points by adding the columns 1, 2 and 3 and then multiplying the sum by the value in column 4. The player with the lowest value knows best how to protect the environment.