For the day of science all school children are in turmoil: what can be done to save the earth from global warming? In Ely and Bea, grass scientists, ideas certainly. What will happen this time? An invention that deals with ice cubes? Or with rice beans? And what about Mrs. Trantz's ants and dog in this story have to do with this story? Let's find out together! Reading age: for 8 years.