Earth Week

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Across
  1. 2. Industrial discharge that flows into the sewer system
  2. 5. River flowing through London
  3. 7. Relating to or derived from living matter
  4. 8. A type of secondary containment
  5. 9. Man-made greenhouse gases used in refrigeration
  6. 11. Planet we live on
  7. 12. Used to power our homes and vehicles
  8. 14. A document issued by an authority to allow an installation to operate
  9. 16. Substance discharged into water/air
  10. 18. Type of fuel
  11. 20. Foul Smell
  12. 21. A type of rare earth mineral used in batteries
Down
  1. 1. Processing waste to turn it into a different product
  2. 3. Place where waste is disposed as a last resort
  3. 4. Used to create steam for industrial applications
  4. 6. Related to the sun
  5. 8. All the different kinds of life you'll find in one area
  6. 10. Where ships come to offload their product
  7. 13. Vanished or no longer living
  8. 15. Energy source that harnessed the energy of falling water
  9. 17. Long-term pattern of a region, usually over 30 years
  10. 19. Equipment used to contain or clean up releases