From Yue:

1. Recycling battery
2. Trash classification, learn from Japan
3. Turn off the lights when you go out of room
4. Ebook replaced paper book
5. Encourage using public traffic one time a week instead of driving car everyday
6. Stop using plastic bags and food container in market or restaurant
7. Compare environment of three or more decades or generations
8. Use aluminum cans or other trash to create sculpture
9. Compare the quantity of electricity using for both energy-saving lamp and regular
10. The current situation of people in industrial district or city
11. What can we do by recycling paper
12. We provide fabric supermarket bags and let children paint on the bags
13. Use trash to create painting
14. How the printing destroy environment
15. ECO and CO
16. Painting or recreate trash can
17. Stop wasting water