History of Earth Day

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Across
  1. 1. To be the cause of action (past tense)
  2. 3. What a person/organization hopes to do or accomplish
  3. 6. To be initiated or started by regular citizens at the local level
  4. 9. To prohibit specific items or activities
  5. 10. To miss your home in a way that causes sadness
  6. 11. When to events seem to be, but are not connected
Down
  1. 1. Growth in a way that can be continuous as it does not deplete resources
  2. 2. An outline of things to be done or discussed
  3. 4. The number of people at an event
  4. 5. When a species of plant or animal no longer exists
  5. 7. A meeting of powerful people or nations
  6. 8. Something that is short, quick and memorable