Across
- 4. removing trees for logging, agriculture, or development
- 5. change, sudden or gradual change in Earth's climate
- 6. and burning fossil fuels, coal and petroleum have powered factories, automobiles, and trains
- 9. warming, gradual increase in global surface temperature
- 10. gas, certain gases in the atmosphere
- 11. eruptions, caused short-term global cooling when ash and aerosol particles, or tiny particles suspended in gas, temporarily block solar energy.
- 12. in solar radiation, energy output of the sun varies, small changes over large periods of time can have big impacts on climate
Down
- 1. of continents, this process occurs very slowly, and continues to this day
- 2. fuel, substances formed from the remains of organisms
- 3. manufacturing processes
- 5. dioxide, a green house gas
- 7. effect, process by which these gases trap heat, keeping Earth warm
- 8. rising livestock, producing feed for them, and managing waste produced