Energy

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Across
  1. 5. Released into the atmosphere, for example, by driving, agriculture and burning coal
  2. 7. Can be installed to a roof to produce energy
  3. 10. Produced by domestic livestock e.g cows
  4. 11. Basically buying and selling a right to pollute more
  5. 12. These often kill seabirds and fish and are caused by major accidents.
Down
  1. 1. Long-term solution to replace fossil fuels
  2. 2. Air flow converted to usable energy
  3. 3. A type of fossil fuel. Finland has the highest proportion of these in the world.
  4. 4. Renewable energy source that utilizes organic matter
  5. 6. When the electricity turns off in a large area
  6. 8. When the pH level of precipitation fall below 7
  7. 9. Places to store water