1. Natural Resources

2. Two Types of Natural Resources Nonrenewable- limited Renewable-”unlimited”

3. Nonrenewable Petroleum Coal Natural Gas

4. Are Nonrenewable resources a Problem? Run out Depend on Foreign countries for most of our oil

5. Dependence on Foreign Oil The US imported 66.5 percent of its oil, or 380 million barrels sending approximately $19.3 billion overseas to foreign governments. That’s only for December 2008!! In total, the US spent approximately $475 billion on imported oil in 2008. That’s over $855 million per minute!! Reuters Tue Jan 13, 2009

6. Did you Know? COUNTRY POPULATION 2009 EDUCATION BUDGET United States 303,824,640 $59.2 billion Saudi Arabia 27,601,038 $32.5 billion Venezuela 28,400,457 $19.7 billion Scary, isn’t it? How do you expect to compete?

7. Petroleum (Oil) The good: –Easy to transport –Can be used in many ways (versatile) –Can create a lot of energy –Low cost (compared to other forms of energy) The Bad: –Emits carbon dioxide when burned –We are dependent on other countries

8. Coal The good: –Most abundant fuel source –Fairly cheap –Efficient producer of electricity (56%) The bad: –Emits CO 2 –Dirty –Hazardous

9. Natural Gas (a.k.a methane) The good: –Used to heat your house, cook your food, heat water –May be used in cars (not very often) The bad: –Still releases CO 2 ( though less) –Not easy to get to market (harder to transport)

10. Renewable Biomass Energy (carbon-based fuel) Hydroelectric Energy Geothermal Wind Solar

11. Biomass Create energy by burning wood, crop leftovers and gases made by decaying organic waste (garbage).

12. Biomass (continued) Benefits: –Available Everywhere! Problems: –Burn carbon-based fuels to plant, fertilize, and harvest. –Releases CO2 into the environment –Environmental impact from clearing land and planting crops.

13. Biomass and CO2 impact Plant takes in CO 2 to grow Plant Dies!!! Same amount released Is CO 2 added to the environment!!!

14. Solar Energy Energy from the sun!!

15. Solar Energy (continued) Benefits: –no greenhouse gas emissions Problems: – Cost a lot to build and create solar panels –Takes up a lot of land –Fluid used with solar electricity generators is toxic.

16. Why not solar??? It’s Expensive, but… –Cost has decreased over the past 25 years! –Houses of the future?

17. Wind Power Benefits: –free and clean! Problems: –Expensive –Hazard to birds and bugs –Only works where there is wind

18. Hydropower Water used to turn turbine Benefits: –cheap and clean Problems: –hurts environment

20. Hydroelectric Dam

21. Steam produces power Heat water Create steam Steam rises Steam spins turbine of a electrical generator Examples: –Burning Fossil Fuels –Nuclear Power Plants –Geothermal Power

22. Nuclear Power Fission – Uses UraniumFission Large energy released Heats up water Spins turbine

23. Nuclear Power (continued) Good: –Does not burn carbon, no increase in greenhouse gases –Fairly cheap to run Bad: –Produces nuclear waste –People concerned about safety… whether they should be or not.

24. Geothermal Energy Uses heat from inside the Earth to heat water into steam that turns turbine

25. Geothermal (continued) Good: –No greenhouse gas emissions Bad: –Very Expensive –Still give off a tiny amount of carbon –Limited areas that can be used –Areas can cool off after awhile