Environmental issues crossword

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Across
  1. 2. Long-term weather pattern.
  2. 4. Renewable energy generated by turbines.
  3. 9. Interconnected system of life and environment.
  4. 11. Large-scale removal of forests.
  5. 13. Grown without synthetic chemicals.
  6. 14. Unwanted or unusable materials.
  7. 15. Element linked to emissions.
  8. 17. Organic waste turned into fertilizer.
  9. 19. Clean energy from the sun.
  10. 20. To keep something going without harming it.
Down
  1. 1. Variety of life on Earth.
  2. 3. Gases released into the atmosphere.
  3. 5. Type of gas causing warming.
  4. 6. Reusing materials to reduce waste.
  5. 7. Rapid growth of algae that harms water quality.
  6. 8. Synthetic material harming oceans.
  7. 10. Contamination of air, water, or soil.
  8. 12. Layer protecting Earth from UV rays.
  9. 16. Polluted precipitation harming ecosystems.
  10. 18. Fuel Nonrenewable energy source like coal or oil.