Across
- 1. absorbing and retaining carbon
- 2. attempts to stabilize greenhouse gasses
- 4. how the ratio of carbon-12 to carbon-13 has changed since the industrial revolution
- 6. number of greenhouse gasses
- 8. the number of sunspots fluctuates every __ years
- 9. the ability cyanobacteria evolved during this period
- 14. percent of argon in the atmosphere
- 15. percent of oxygen in the atmosphere
- 17. how sea ice is changing because of climate change
- 18. was the carbon cap and trade bill passed
- 19. what glaciers are doing around the world
Down
- 1. the isotope of carbon plants use for photosynthesis
- 3. adjusting society to the expected future
- 5. how sea level is changing because of climate change
- 7. changing natural processes intentionally and artificaly
- 10. the amount of scientists that agree about climate change
- 11. percent of nitrogen in the atmosphere
- 12. percent of infrared energy absorbed by land and sea
- 13. what the earths temperature does during a glacial period
- 16. number of variable gasses