Philosophy puzzle

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Across
  1. 6. Decline in environmental quality from human activity.
  2. 15. Promotes wise use and protection of natural resources.
  3. 16. Branch of philosophy studying human–nature relationships.
  4. 17. Type of ecologist calling for radical lifestyle change to protect life.
  5. 19. Clearing of forests for profit or development.
  6. 20. Branch of ethics examines duties regarding this global issue.
  7. 21. State caused by natural calamities or human negligence.
  8. 22. Hypothesis proposing Earth acts like a self-regulating living organism.
  9. 25. View that humans are the most important species on Earth.
  10. 26. Moral duty of humans to care for and protect the environment.
  11. 29. A proposed explanation, like the Gaia concept.
  12. 30. Scientists or advocates concerned with relationships of organisms and their environment.
Down
  1. 1. Thriftiness and avoidance of waste.
  2. 2. A good life means living in harmony with the natural world.
  3. 3. Deep ecology highlights this intrinsic worth of all life.
  4. 4. Belief that all organisms have inherent worth.
  5. 5. Philosophy teaches humans are part of nature and dependent on it.
  6. 7. International protocol on reducing greenhouse gases.
  7. 8. Proper handling of resources and refuse.
  8. 9. Philosophical view that keeping surroundings orderly enhances natural beauty.
  9. 10. Meeting present needs without compromising future generations.
  10. 11. Fair distribution of environmental benefits and burdens.
  11. 12. Careful, wise decision-making in using resources.
  12. 13. First word in the law promoting proper waste management.
  13. 14. Something minimized through ecological responsibility.
  14. 18. Ensuring resources remain for future generations.
  15. 23. Maintaining the state and wholeness of the environment.
  16. 24. Emphasizes the value of entire ecosystems and communities.
  17. 27. Contamination of air, water, or soil.
  18. 28. Moral principles guiding human actions toward nature.