Across
- 2. greenhouse effect
- 3. coniferous tree
- 4. sewage
- 5. lowland
- 6. erosion
- 7. drought
- 8. lake
- 11. lämpeneminen global warming
- 13. tsunami
- 14. fertile
- 15. climate change
Down
- 1. biodegradable
- 3. tropical storm, hurricane, cyclone, typhoon
- 4. river
- 6. habitat
- 9. desertification
- 10. recycle
- 12. irrigation