climate change

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