Noah Tim Tam's Sustainability Crossword Puzzle

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Across
  1. 2. Coal, oil, and gas from ancient life that pollute when burned.
  2. 7. Total greenhouse gases released by a person, group, or product.
  3. 8. Global group formed in 1945 to promote peace and cooperation.
  4. 9. Protecting nature and resources responsibly.
  5. 11. Turning waste into reusable materials.
  6. 12. Non-native species that harm ecosystems.
  7. 13. Growth that doesn’t harm future generations.
  8. 15. Gases that trap heat and warm the planet.
  9. 17. Keeping nature balanced and saving resources for the future.
  10. 18. Variety of life in an ecosystem.
  11. 19. Long-term shifts in Earth’s weather caused mainly by humans.
  12. 20. Harmful substances released into the environment.
Down
  1. 1. Natural home of a species.
  2. 3. 17 UN goals to improve global sustainability.
  3. 4. Growth of cities, which can harm or help sustainability.
  4. 5. Useful materials from nature like water and minerals.
  5. 6. Heat from Earth used for power and heating.
  6. 10. Impact: How human actions affect nature.
  7. 14. Animals or plants at risk of extinction.
  8. 16. Power from sources that naturally refill, like sun and wind.