Across
- 3. blanket,regulates temp
- 7. age low temps
- 10. hemisphere is facing sun, half passes through
- 11. warm period was 950-1250 bc
- 12. relationship CD concentration and global temps\
- 13. bubbles greenhouse gas estimate
- 14. period growing temps
- 15. - carbon dioxide methane
Down
- 1. thin layer of gases that surround the earth
- 2. period warmer climate
- 4. layer that produces weather
- 5. dioxide and nitrogen earths atmosphere
- 6. flow system mixing of warm and cool water
- 8. ice free floats
- 9. surfer volcanic eruptions