Chris Martin

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Across
  1. 7. a layer of the atmosphere that absorbs UV radiation
  2. 10. ocean currents, changing wind
  3. 12. It can interfere with
Down
  1. 1. a nitric acid form called polar stratospheric clouds
  2. 2. flood wetlands erode beaches
  3. 3. there higher in the winter because of photosynthesis
  4. 4. over Antarctica
  5. 5. average weather
  6. 6. rising air
  7. 8. droughts and floods, change in growing season
  8. 9. air that sinks
  9. 11. a thinning of stratospheric ozone that occurs over Antarctica each spring