Climate Change and Time

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Across
  1. 2. never happened before
  2. 3. to remove a second in time measurement
  3. 6. to add a second in time measurement
  4. 8. noteworthy
  5. 9. relating to the smallest unit of matter
  6. 11. exact
Down
  1. 1. not predictable
  2. 4. to appear out of nowhere
  3. 5. something done right away
  4. 7. "sync" is the abbreviation
  5. 10. a line something revolves around