Climate Change
Across
- 4. A warming of the lower atmosphere caused by certain gases
- 5. Plate tectonics and volcanic eruptions are _______.
- 10. Coal, oil and natural gas are
- 11. This greenhouse gas comes from cows
- 12. Low amounts of carbon dioxide in the atmosphere can cause cooling events called
- 13. Carbon dioxide and water vapor are ___________.
- 14. Since 1880 Earth's temperature and carbon dioxide levels have been
Down
- 1. These come from Antarctica and look like glass rods and contain air bubbles.
- 2. Humans eat too much ______ like cows, pigs and chickens.
- 3. Global warming is caused by ____ _____ such as burning fossil fuels and cutting down trees
- 6. Scientists learn about Earth's past climates through tree rings, ice cores and
- 7. This is a sudden or gradual change in Earth’s climate.
- 8. Large __________ eruptions can either or warm Earth
- 9. The increase in Earth's average temperature