Protecting the environment

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Across
  1. 4. valueless
  2. 6. moyen (fr)
  3. 9. reimburse
  4. 11. cover your property in case of damage
  5. 12. credit to pay for a house
Down
  1. 1. cities that are near the sea(adj)
  2. 2. long time in the future
  3. 3. a period of extreme hot temperatures
  4. 5. bigger than usual
  5. 7. increase
  6. 8. liquefy
  7. 10. submerge