Across
- 5. A common industrial gas.
- 6. An important natural system destroyed by greenhouse gases.
- 8. Ultra-large-scale temperature rise.
- 10. Gas emitted by the factory.
Down
- 1. The gas that raises the temperature of the Earth.
- 2. Meetings of some major countries.
- 3. Things that make marine creatures sad.
- 4. Things that make polar bears and some animals sad.
- 7. The Earth has undergone major change in some aspects.
- 9. A greenhouse gas commonly produced by cattle.