Across
- 3. Proxy that is used to measure the past atmosphere of the Earth
- 7. When glaciers are growing and advancing
- 9. Mostly carbon dioxide and nitrogen
- 14. Area of the Earth is most affected by this system
- 15. The tendency of water to expand in volume as it warms
- 18. The reason the troposphere and stratosphere doesn't mix
- 19. Type of isotope of carbon that plants use for photosynthesis
- 20. Warming of the climate system is _____
Down
- 1. Frozen sea water that floats on the oceans suface
- 2. A thin layer of gases that surrounds the Earth
- 4. The number of sunspots fluctuates about every ___ years
- 5. Any premanent layer of ice covering a track of land
- 6. Where the daily atmospheric carbon dioxide concentrations are measured
- 8. The overall climate is warmer, leading the glaciers to retreat
- 10. Nino-Southern Oscillation Cycle Is a periodic warming and cooling of surface ocean temperature in the pacific Ocean
- 11. Strategies ar designed to reduce emissions and stabilize levels of greenhouse gases already in the atomsphere
- 12. Most percentage of permanent gasses in the Earth's atmosphere
- 13. Ocean Conveyor Belt Is an underwater current fueled by the mixing of warm and cold salt water
- 16. The sun emits more radiation when ____ sunspots are present
- 17. A period of time where Earth's overall surface temperature is lowered enough that glaciers form at the poles and I'm mountainous areas