1. Aim-Why should we use renewable resources?

2. Define Non-Renewable Resources
Finite = limited

3. Cannot be replenished by natural processes.
Once we use them, they're gone FOREVER.

4. What are some examples of nonrenewable resources?
Fossil Fuels- from the remains of organisms that lived millions of years ago
Coal
Oil
Natural gas

5. What will happen in the future if we keep on using our non-renewable resources?
We will run out of them

6. Define Renewable Resources
Replaceable
Items that will keep coming back as long as we treat them properly.

7. When we cut down trees for paper, we can replant new trees & get more paper.

8. Examples of Renewable Resources:
Fresh water
Trees
Air
Sun energy
Bio fuel
Hydroelectricity
Solar energy
Wave power
Wind power

9. What will happen in the future if we use our renewable resources without replacing them?
If they are not replaced as fast as they are used we will run out of them.

10. How can over fishing occur?
Section 6-2
World Fish Catch
World Fish Catch per Person
Total Catch
(million tons)
Go to Section:

11. Humans are removing too many fish
Too few fish are remaining to reproduce and replenish the fish population

12. Name Alternative Energy Sources (not fossil fuels):
Hydroelectricity
Wind power
Solar energy
Nuclear energy

13. Each has their own tradeoffs…
Tradeoffs are advantages and disadvantages

14. What is hydroelectricity?
Dammed water forms electricity
Advantages:
No air pollution
No use of fossil fuels

15. Disturbs aquatic ecosystems
Disadvantages
Disturbs aquatic ecosystems

16. Doesn’t use fossil fuels
What is wind power?
Wind forms electricity
Advantages:
No pollution
Doesn’t use fossil fuels

17. Disadvantages
Wind not constant
Many turbines needed

18. What is solar energy?
Sun
Advantages:
No pollution
Affordable

19. Disadvantages
Nighttime
Cloudy weather

20. Water vapor is the only emission. Low fuel costs
What is nuclear energy?
Splitting of atoms
Advantages:
Water vapor is the only emission.
Low fuel costs

21. Radioactive waste (thousands of years)
Disadvantages
Radioactive waste (thousands of years)
High maintenance costs

23. Energy conservation is vital!
We need to conserve energy

24. Examples: Turn off lights Carpooling
Use fan instead of air conditioner, etc…

25. How can we correct human impact on the environment?

26. Education
Laws
Nature preserves
Reduce
Reuse
Recycle