1. Energy & Resources

2. Fueling our energy needs
Our modern lifestyle requires electricity
Fuel or other types of energy (light, kinetic, heat) is needed to generate electricity
85% of the energy used in the U.S. is generated by using fossil fuels

3. What we use energy for

4. How Fossil fuels are formed
1. Plants & animals collect in layers of mud in a shallow sea
2. Layer is buried, heated, pressurized (millions of years)
3. Rock is bent, oil is trapped with natural gas & oil above & water below

5. Petroleum (oil) is more than a fuel
Petroleum is used to make fertilizers, plastics, and even cosmetics

6. Problems with fossil fuels
Fossils fuels are non-renewable
Burning creates CO2 ,a greenhouse gas
Greenhouse gasses contribute to global warming

7. Non-renewable resources
Fossil fuels are running out
The demand for energy is increasing as China, India, Russia and other countries grow their economies
When it will be gone? That depends.
Estimates: Petroleum yrs, natural gas yrs, coal 150 years

8. Renewable energy Renewable resources will not run out
Do not produce greenhouse gasses
They all have pros and cons
Solar
Wind
Geothermal
Nuclear
Tidal
Hydroelectric
Biofuel

9. Solar & Wind Wind: Using kinetic engergy
Pro: no greenhouse gasses
Cons: wind does not blow all the time, turbines can kill birds
Solar: uses light energy from the sun
pros: will not run out
Cons: Does not work at night, solar panels are not in many location (yet)

10. Hydro-electric Moving water turns turbines to generate electricity
Most rivers are already dammed
Causes problems for fish, downstream habitats

11. Reducing energy waste If we use less we need less
Transportation: use public transit, more efficient cars
Heating: insulation, turning down the thermostat
Other: recycling, more efficient electronics, lights, & appliances
Big picture: Fewer people = Less demand, Living simply = using less energy
157 mpg car

12. Review Is oil a renewable resource?
What do we use most of the engergy for?
Name 2 types of renewable energy