Global warming

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Across
  1. 3. use
  2. 5. save energy
  3. 7. opposite of turn on
  4. 8. tools
  5. 9. rule made by the government
  6. 10. change
  7. 11. money that we earn goes to the government
  8. 13. energy that doesn't damage the environment
  9. 14. ban
  10. 16. noun of "solve"
  11. 17. synonym of affect
  12. 18. opposite of aritificial
Down
  1. 1. lack of trees
  2. 2. energy made from living things
  3. 4. close
  4. 6. sulfur dioxide (SO2)
  5. 12. eliminate
  6. 15. problem