Science crossword - greenhouse and global warming

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Across
  1. 2. plants participate in this
  2. 3. A contributing factor to global warming
  3. 6. gas that kills
  4. 7. type of fossil fuel
  5. 9. fuel category that causes pollution
  6. 12. The ice caps are doing this
  7. 13. Cows make it
  8. 14. the blanket the covers the world
  9. 15. a type of plant
Down
  1. 1. the gasses surrounding the planet
  2. 4. the rising temperature of the planet
  3. 5. rain, sunshine, cloudy are all examples
  4. 8. result of rising sea levels
  5. 10. result of climate change
  6. 11. weather patterns