Pros
- Lots of energy from a small bit of Fossil Fuel.
- Easy to get.
- Provides jobs in oil rigs and mines.
Cons
- Causes pollution from smoke and soot.
- The extraction of coal is very dangerous with the miner facing roof falls, flooding, explosions and gas leaks.
- When a mine collapses below the earth the layers above move to fill n the the gap so the Earth sinks leaving ridges and dips which effects farms and plant life.
- The wast of coal mines are dumped in slag heaps but if the heaps get wet they cause land slides which in one case killed 144 people.
- The various materials such as sulphur dioxide and trioxide which are by-products of coal fires are mixing with water causes acid rain to ruin plant life and crops.
- Because of the amount of oil and coal we need, we are exhausting the Earth's supply and the price is going up. FAST.
- Smells bad.
- Oil and waste dumped in the sea kills animals and pollutes the sea.
- The smog and pollution gets rapped in our atmosphere and it allows heat in but not out so the Earth heats up but cannot cool down which melts polar ice caps and the North and South Poles.
The Pros and cons of Hydro-electricity.
Pros
- Eco friendly.
- Doesn't pollute.
- Only emits water vapour.
- Hydrogen is one of the more common elements so it cannot be exhausted easily.
- Highly efficient.
- The price will come down when lots of people buy them.
- Can be produced anywhere in the world.
- Hydrogen costs a lot less than petrol.
- Reduces the dependence on other countries for their oil supply.
- Hydrogen is safer than coal and oil.
- Their emissions won't kill wildlife like soot and smoke.
Cons
- Will be expensive when it first comes out.
- Highly flammable
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