Across
- 6. gas that absorbs infrared radiation
- 8. thinning of forests by human activity
- 9. effect of global warming
- 10. ways to reduce CO2 emissions
Down
- 1. cause by thermal energy
- 2. another word for burning
- 3. breaking down dead organic
- 4. release heat into the environment
- 5. renewable energy from organic matter
- 7. one of the solutions to global warming