Across
- 6. are losing 127 gigatons of ice per year
- 7. decreased steadily, when an ice free arctic expected
- 8. atmosphere was mostly carbon dioxide and nitrogen
- 9. period of time where the earth got older
- 13. getting warmer/melting
- 14. the tendency of water expands in volume as it warms
Down
- 1. thin layer of gases that surround the earth
- 2. absorbs and scatters ultra-violent light
- 3. getting colder
- 4. formed as more ice is laid down each year
- 5. is an underwater current fueled by the mixing of warm and cold salt water
- 7. water flowing in form melting ice
- 10. is very dry and has a less dense layer above the troposphere
- 11. carbon sinks meaning they absorb and retain carbon dioxide from the atmosphere
- 12. contains the air we breathe and every aspect of what we call weather