Across
- 1. a point in questions or matter in dispute
- 4. use less
- 5. capable of being supported or upheld
- 7. laws or regulations made by national leaders
- 9. energy derived from the sun
- 10. international treaty intended to reduce greenhouse gas emissions
- 11. energy derived from the movement of water
- 12. energy derived from wind turbines
Down
- 2. the natural world
- 3. to treat or process as to make suitable for reuse
- 5. to take a comprehensive look at a particular issue
- 6. new forms of energy which replace fossil fuels
- 8. a synonym of recycling