Notes
Non-renewable resource
Peat – is an accumulation of partially decayed vegetation matter and id the first stage in the formation of coal
Peat is still mined as fuel in Ireland and England
Advantages and disadvantages of oil
Advantages
- ample supply 42-93 years
- Low cost
- High net energy yield
- Easily transported within and between countries
- Low land use
- Technology is well developed
- Efficient distribution system
- need to find substitutes within 50 years
- Large government subsides
- Environmental cost not included in market price
- Artificially low prices encourages wastes and discourages search for alternative
- Pollutes air when produced and burned
- Releases CO2 when burned
- Can cause water pollution
Traditional energy
- Wood
- Field crops
- Fecal material
- Peat
- Coal
- Oil
- Natural gas
- Nuclear
Pros and cons of natural gas!
Pros
Cons
Pros
- Ample supple
- High net energy yield
- Low cost
- Less air pollution than fossil fuels
- Lower CO2 emissions than other fossil fuels
- Easily transported by pipelines
- Low land use
- Good fuel for fuel cell, gas turbines, and motor vehicles
Cons
- Nonrenewable resource
- Releases CO2 when burned
- Government subsidies
- Environmental costs not included in market
- Methane can leak from pipelines
- Difficult to transfer from one country to another
- Can be shipped across ocean only as highly explosive LC
Hydraulic Fracturing or fracking is technology used in drilling for oil and natural gas
Pros and Cons of Coal*
Cons
Pros
Pros and Cons of Coal*
Cons
- Severe land disturbance , air pollution, and water pollution
- Severe threst to human health when burnes
- Environmental cost not inckuded in market price
- Large government subsides
- High Co2 emission when produced and burned
- Radioactive
Pros
- Amplw supplie 225-900 years worth
- High net energy yield
- Low cost
- Well developed technology
- Air pollution can be reduced with improved technology
To nuclear-
Adv
Adv
- Large supply
- Low environmental impact
- Emits 1/6 as much CO2 as coal
- Moderate land and water pollution
- Moderate land use
- Low risk because pf accidents because of multiple safety system
- Cannot complete economically without huge government subsides
- Low net energy yield impact
- Environmental costs not included in market price
- A big risk of catastrophic accidents
- Not widely accepted