Across
- 3. air we breathe & every aspect of weather
- 4. main thing is ice cores
- 8. tendency of water to expand in volume as it warms
- 11. weakened greenhouse effect to the removal of carbon dioxide etc.
- 12. period of time where earths surface is lowered enough to form glaciers
- 13. ConveyorBelt underwater current fueled by warm & cold salt water
- 15. formed as more ice is laid down each year
Down
- 1. solar radiation passes atmosphere & warms earth
- 2. layer absorbs & scatters ultraviolet radiation
- 5. dry & dense layer above troposphere
- 6. lasted from the 16th-19th century
- 7. dark areas around suns surface
- 9. permanent layers of ice covering a tract ofland
- 10. relationship between carbon dioxide concentration & global temp
- 14. relationship between methane concentration & global temp