Across
- 3. - Sustainable practice
- 5. - Energy source
- 9. - Environmental pollutant
- 10. - Variety of life
- 11. - Atmospheric layer
- 12. - Environmental harm
Down
- 1. - Greenhouse gas
- 2. - Climate change consequence
- 4. - Preservation effort
- 6. - Sustainable resource
- 7. - Tree loss
- 8. - Organic waste treatment