Across
- 3. atmosphere
- 6. recycling
- 8. campaign
- 9. loss
- 11. fuel
- 13. resources
- 14. garbage
- 17. air
- 18. oil/petroleum
- 20. heavy downpour
- 22. mountain range
Down
- 1. polluting
- 2. drought
- 4. planet
- 5. biodiversity
- 7. shower
- 10. threat
- 12. forest
- 15. hail
- 16. erosion
- 19. waste
- 21. catastrophe