Across
- 5. Extremely large ice mass covering a continent
- 6. Frozen precipitation from clouds
- 7. Slow-moving river of ice
- 9. Using resources without harming the future
- 11. Ability of ice to reflect sunlight
- 12. Liquid that ice melts into
- 14. Long-term change in Earth's climate
- 15. Star that warms the Earth
Down
- 1. Coal, oil, or natural gas used for energy
- 2. Large ice mass covering land
- 3. Energy from natural sources like sun or wind
- 4. Cutting down trees
- 8. Powerful greenhouse gas
- 10. Gas released from burning fossil fuels
- 13. Frozen water