Across
- 2. plastic bag
- 6. schmilzt am Nordpol
- 12. greenhouse effect
- 14. used paper
- 16. overpopulation
- 18. waste
- 20. toxic waste
- 21. extinction (of species)
Down
- 1. packaging was
- 3. flood
- 4. light
- 5. factory
- 6. trash
- 7. pollution
- 8. spieces
- 9. second-hand clothing
- 10. acid rain
- 11. yard waste
- 13. danger
- 15. global warming
- 17. solar energy
- 18. scrap metal
- 19. trash truck