April Crossword

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Across
  1. 4. A renewable resource harvested from trees
  2. 6. A type of pollution caused by oil spills
  3. 13. The process of planting trees
  4. 15. A wildlife conservation organization
  5. 17. A type of pollution caused by factories
  6. 19. A small action to help the environment
  7. 20. A symbol of peace and environmental protection
  8. 23. A strategy to reduce carbon emissions
  9. 26. A sustainable farming method
  10. 28. The world's largest tropical rainforest
  11. 29. The process of reducing energy consumption
  12. 30. A chemical compound that damages the ozone layer
  13. 31. The study of ecosystems
  14. 33. A reusable alternative to plastic straws
  15. 34. A material that can be recycled
  16. 35. A threatened species of big cat
  17. 36. A reusable shopping bag material
  18. 38. A global environmental movement
Down
  1. 1. The protection of natural habitats
  2. 2. A program to plant trees
  3. 3. A type of pollution caused by cars
  4. 5. The opposite of disposable
  5. 7. A campaign to clean up litter
  6. 8. An organization focused on wildlife conservation
  7. 9. A method of harnessing sunlight for energy
  8. 10. A government agency focused on environmental protection
  9. 11. A method of conserving water
  10. 12. A species of flightless bird native to New Zealand
  11. 14. A renewable energy source
  12. 16. The process of turning waste into compost
  13. 18. A campaign to raise awareness about climate change
  14. 20. An endangered marine mammal
  15. 21. The Earth's outer layer
  16. 22. A program to reduce waste by reusing items
  17. 24. A group of people dedicated to cleaning up beaches
  18. 25. An animal known for its long migration journeys
  19. 27. An animal known for its hibernation abilities
  20. 32. An initiative to protect endangered species
  21. 37. A type of energy generated by wind