Climate Change

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

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