Environmental Problems
- Created by: izzygreenxoxo
- Created on: 07-04-17 10:51
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- Environmental problems
- Burning fossil fuels
- Power stations - make electricity
- Cars - petrol
- Fuels like crude oil and coal - carbon and hydrogen
- During combustion - oxidised - carbon dioxide and water vapour + energy
- If fuel contains sulfur - sulfur dioxide
- High temperature - nitrogen oxides
- Enough oxygen - complete combustion
- Not enough oxygen - partial combustion - carbon monoxide and soot released
- Acid rain
- Sulfur dioxide
- Mixes with clouds - dilute sulfuric acid - acid rain
- Lakes - acidic
- Kills plants and animals
- Kills trees
- Damages limestone buildings
- Ruins stone statues
- Could cause health issues
- Reduction
- Remove sulfur from fuels
- Expensive
- More energy needed
- More CO2
- Reduce use of fossil fuels
- Petrol and diesel already being lowered
- Power stations - acid gas scrubbers - take harmful gases out
- Remove sulfur from fuels
- Sulfur dioxide
- Carbon dioxide
- Level in atmosphere - increasing
- Large amounts of fossil fuels burnt
- Increasing Earth's average temp
- Level in atmosphere - increasing
- Global dimming
- Less sunlight reaching the earth
- Could be caused by particles of soot and ash
- Alternative fuels
- Ethanol
- Pros
- CO2 released is taken in by plant as it grows - carbon neutral
- Onlyother product - water
- Cons
- Engines have to be converted
- Not widely available
- Farmers may switch to growing ethanollants - increase in food price
- Produced from biofuel - fermentation - power cars -mixed with petrol
- Pros
- Biodiesel
- Biofuel - vegetable oils - mixed with diesel for diesel engines
- Pros
- Carbon neutral
- Engines don't have to be converted
- Less sulfur dioxide
- Cons
- Can't make enoigh to replace diesel
- Expensive
- Increase food prices
- Hydrogen gas
- Power vehicles - Hydrogen from electrolysis of water - Renewable
- Cons
- Special expensive engine
- Isn't widely available
- Energy from another source to make
- Hard to store
- Pros
- Water is the only waste product - clean
- Ethanol
- Burning fossil fuels
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