Climate Change

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Across
  1. 4. A time of intense difficulty or danger
  2. 5. A clearance of trees
  3. 9. A natural world
  4. 11. A state of something
  5. 13. To convert into reusable material
Down
  1. 1. A process warming the earth’s surface
  2. 2. A catastrophe!
  3. 3. Be able to maintain a certain rate
  4. 6. Power used for activation
  5. 7. Harmful substance into the environment
  6. 8. The degree of heat in a substance
  7. 10. Environmental friendly
  8. 12. Continual or expendable