the environment

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Across
  1. 3. water shortage
  2. 6. polluting substance
  3. 9. the CO2 emissions generated by a person or activity
  4. 11. environmental, economic and social approach to development
  5. 12. saving energy
  6. 13. can be produced as quickly as it is used
Down
  1. 1. uses solar power
  2. 2. causes global warming
  3. 4. using wind power
  4. 5. reduction in quantity
  5. 7. what's left after use
  6. 8. formed in the geological past
  7. 10. electricity