Across
- 3. Planting trees again
- 6. Water rising in oceans
- 7. Layer of gases surrounding Earth
- 8. using less energy
- 10. increases in weather patterns
- 12. Gas that traps heat in the atmosphere
- 16. energy from the sun
- 17. Large body of moving ice
- 18. energy will never run out
- 20. Human cutting down forests
Down
- 1. energy will eventually run out
- 2. Weather getting hotter or colder
- 4. burning of coal oil and natural gases
- 5. Reflection of sunlight
- 9. layer protecting the earth
- 11. Burning of fossil fuels adds this to air
- 13. increases in average temperature
- 14. gas needed to breath
- 15. process that warms Earth
- 19. burning gas and oil releases