1. Unit 1 – Energy Sustainability
Fall 2015

2. What is Earth/Environmental Science?

3. Everything is Connected
In the center of your butcher paper, write:
“7 Billion People and Growing”
What are the environmental, economic, and social impacts of more than 7 billion people living on the planet? Could be positive or negative, or neutral.
Write this consequence near the center. Draw a line to connect the two.
Continue adding along this concept, or add a new idea to the central concept. Create a large and interconnected web!

4. Global Population Clock: http://www.census.gov/popclock/
NPR “7 Billion: How did we get there so fast?”
It was just over two centuries ago that the global population was 1 billion — in But better medicine and improved agriculture resulted in higher life expectancy for children, dramatically increasing the world population, especially in the West.
As higher standards of living and better health care are reaching more parts of the world, the rates of fertility — and population growth — have started to slow down, though the population will continue to grow for the foreseeable future.
U.N. forecasts suggest the world population could hit a peak of 10.1 billion by 2100 before beginning to decline. But exact numbers are hard to come by — just small variations in fertility rates could mean a population of 15 billion by the end of the century.

5. How do birth and death rates contribute to a growing population?
As death rates slow and birth rates remain the same, the population will increase.

6. What factors affect birth and death rates?
Better medicine slows death rates and increases birth rates. Fertility: birth control decreases birth rates. (seen in developed countries)
Better nutrition leads to lower death rates.

7. What innovations and historical changes led to the population growth we’re seeing today?
medicine. Technological advances. More sanitary and safe living conditions. Better agricultural practices. Discuss the baby boom (refer back to the population clock)

8. Carrying Capacity
Based on information conveyed in the pictures, develop a definition for “carrying capacity.”
Based on your definition, what are some things that a carrying capacity would depend on?
It was just over two centuries ago that the global population was 1 billion — in But better medicine and improved agriculture resulted in higher life expectancy for children, dramatically increasing the world population, especially in the West.
As higher standards of living and better health care are reaching more parts of the world, the rates of fertility — and population growth — have started to slow down, though the population will continue to grow for the foreseeable future.
U.N. forecasts suggest the world population could hit a peak of 10.1 billion by 2100 before beginning to decline. But exact numbers are hard to come by — just small variations in fertility rates could mean a population of 15 billion by the end of the century.

9. Global Population Carrying Capacity Limiting Factors
the number of organisms (animals, plants, etc) of a certain type which can be supported by that ecosystem
an equilibrium, or balance
Limiting Factors
Things that prevent the population from growing any larger. ?
Write down student responses to limiting factors on the board, then proceed to the next slide.

10. Global Population Carrying Capacity Limiting Factors
the number of organisms (animals, plants, etc) of a certain type which can be supported by that ecosystem
an equilibrium, or balance
Limiting Factors
Things that prevent the population from growing any larger.
amount of resources available in the ecosystem
size of the population (of the organism)
amount of resources each individual is consuming

11. Carrying Capacity Carrying capacity can also have a broader meaning:
It can be defined as the number of living things (plants and animals) any area of land or water can support at any one time.
Different organisms will have different carrying capacities in the same area.
Thus, the carrying capacity of an ecosystem affects everything that lives in it.

12. Graphing a population
The populations of most living things tend to fluctuate naturally around a certain level. That level is the carrying capacity.
Below is a graph of a population at the carrying capacity of its ecosystem.

13. #energy activity
Each table has a piece of chart paper with a type of Energy source. . .
On ONE sticky note, write EITHER a #pro (good thing) or #con (bad thing) about the energy source listed on the paper.
When instructed, ROTATE AS A TABLE to the next piece of chart paper and repeat step 1. You MAY NOT duplicate a #! Everyone must write something UNIQUE!
You may NOT use a phone for reference until instructed to do so by your teacher!

14. Coal
Coal- fossil fuel burned to release energy.

15. Nuclear
nuclear energy- bringing together of two atoms to produce energy

16. Natural Gas
Natural gas-flammable gas formed underground used as an energy source

17. Rivers are dammed to create hydroelectric power
Hydroelectricity- energy produced by the gravitational pull/ falling of water.
Low pollution
Rivers are dammed to create hydroelectric power

18. good for the environment (eco-friendly)
Wind
Wind energy- energy produced by capturing wind into turbines.
Saves fossil fuels
Cost efficient
good for the environment (eco-friendly)

19. Stores energy for extended use Environmentally friendly
Solar
solar energy- energy created from radiation from the sun.
Stores energy for extended use
Environmentally friendly
Can be expensive

20. “Clean” and sustainable
Geothermal
geothermal energy-energy generated and stored in Earth
Renewable
“Clean” and sustainable

21. Renewable Less expensive Biofuel
biofuel-energy manufactured from various types of biomass.
Renewable
Less expensive

22. Homework
Identify 1 alternative and 2 traditional power sources used in NC. Record the type of energy source AND the city/region it is used.

23. Types of Energy in NC
What did you find?

24. Types of Energy in USA
What did you find?

25. Types of Energy in USA
Coal, On-shore oil, & off-shore oil

26. Types of Energy in USA
Wind

27. Types of Energy in USA
Solar

28. Types of Energy in USA Geothermal
Start getting students to think towards the Ring of Fire (which is seen on the next slide)

29. Geothermal Energy in WORLD
Do you recognize this area?

30. Repurpose! Take a used item and use it for a completely new purpose!
Video clip:
Artist Gregory Khloen takes trash materials and turns them into homeless shelters..
Pictures/Article:

31. Repurpose!
Two students in Malaysia created a new material they claim is better than plywood!
Blend of recycled plastic and pineapple leaf fibers.
They say it’s easy to make, cheap, and waterproof.

32. Energy Grids
Regional Grid-system that services small areas in the United States with electricity
supergrids
Super Grid- one massive system that will provide energy to the entire United States

33. Sustainability What is sustainability?
Sustainability allows for the needs of man to be met without jeopardizing the ability of future generations to meet their needs.

34. Agricultural Sustainability
Farming techniques that protect the environment
Examples:
Reducing dependency and use of pesticides
Minimizing water usage
Crop Rotation

35. Water Sustainability Examples:
Installing efficient shower heads, toilets, and HE washing machines
Reuse water (reclaimed water)

36. Construction Sustainability
In new construction use recycled or sustainably sourced materials
Use eco-friendly building products
Take advantage of natural light

37. Forestry Sustainability
Selective logging - partial
forest removal
Replace downed trees with seedlings
Allow trees to mature before harvesting

38. Future Resources??