Across
- 3. trafficjam
- 4. cut down
- 10. pollute
- 11. plant
- 12. destroy
- 13. plan
- 16. during
- 17. publictransport
- 18. pollution
- 19. turnoff
- 20. environment
Down
- 1. marineanimals
- 2. recycle
- 4. different
- 5. tap
- 6. take place
- 7. litter
- 8. area
- 9. takepart
- 14. organise
- 15. can