Across
- 2. garbage collection
- 4. carpooling
- 6. a law
- 7. combustable/fuel
- 11. endangered species
- 13. nuclear energy
- 14. energy consumption
- 15. ecotourism
Down
- 1. an area/a space
- 3. in the open air
- 5. recycling
- 8. landscape
- 9. solar energy
- 10. nuclear plant
- 12. well being