Climate Change
Across
- 2. wind turns turbines to run generators
- 4. is the source of 1/3 of air pollution due to burning of gasoline
- 6. the warming of the Earth due to gases in the atmosphere trapping and radiating heat
- 8. the use of technology that requires less energy to perform the same function
- 9. refers to atmospheric gases that trap and radiate heat
- 11. period of colder global temperatures with glacial expansion across the Earth's surface
- 13. warmer global average temperature that separates glacial periods within an ice age
- 14. organic matter in plants produced through photosynthesis and can be burned directly as a solid fuel
- 15. future energy supplies are likely to come from a much wider range of renewable sources
- 16. generated when flowing water turns turbines to run generators
- 18. by-product of chemically mixing hydrogen and oxygen to produce electricity
- 19. heat contained in underground rocks and water that can be tapped for energy
- 21. is a an example of a greenhouse gas produced by burning of fossil fuels
- 22. meeting the needs of the present without compromising the ability of future generations to meet their needs
- 23. caused an increase in fossil fuel usage and allowed human population growth
Down
- 1. used up faster than it forms in nature
- 3. shows land needed to support one person in a particular country
- 5. any behavior that results in the use of less energy
- 7. replenished naturally and over relatively short periods of time
- 10. energy released as heat by fission of the nucleus of an atom
- 12. contamination of the atmosphere by solid/liquid/gaseous wastes
- 17. photovoltaic cells convert heat from the sun directly into electricity
- 20. nonrenewable resource containing carbon made from buried, decayed, combustible material
- 21. long term shift in global climate patterns in the atmosphere