Across
- 5. How many years does it take for a new tree ring to grow?
- 6. When there is less of this, a tree ring will be thinner.
- 8. The amount of time a gas stays in the atmosphere.
- 9. The only greenhouse gas with no persistence rating.
- 10. What are ice cores commonly referred to as?
Down
- 1. When do new tree rings form?
- 2. Where do natural greenhouse gasses reside?
- 3. Where are ice cores usually taken from?
- 4. The first person to record greenhouse gas research.
- 7. The revolution that caused greenhouse gasses to skyrocket.