Mining

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Across
  1. 1. global
  2. 5. air
  3. 7. waste
  4. 9. machines
  5. 10. weather
  6. 11. holders
Down
  1. 1. issues
  2. 2. digging
  3. 3. contamination
  4. 4. disaster
  5. 6. industry
  6. 8. peace
  7. 11. copper
  8. 12. invention