Environment

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Across
  1. 2. Gases or substances released into the atmosphere, especially pollutants
  2. 4. Gases in the atmosphere that trap heat
  3. 6. The presence of harmful substances in the environment
  4. 10. The protection and preservation of natural resources and wildlife
  5. 11. The gradual increase in Earth's average surface temperature
  6. 13. Animals or plants at serious risk of extinction
  7. 14. The clearing or cutting down of forests on a large scale
  8. 15. A community of living organisms interacting with their physical environment
Down
  1. 1. Energy sources formed from ancient organic matter, like coal and oil
  2. 3. Processing used materials to create new products
  3. 5. Energy from sources that naturally replenish, like solar or wind
  4. 7. The total amount of greenhouse gases produced by human activities
  5. 8. Meeting current needs without compromising future generations
  6. 9. Long-term shifts in temperatures and weather patterns
  7. 12. The variety of plant and animal life in a particular habitat