fossil fuels

Question 1

CO² in atmosphere

Answer 1

1750 = 280ppm
2023 = 420ppm

Fossil fuels release 10 billion tonnes annually

Question 2

How does CCS work

Answer 2

CCS = Carbon Capture Storage
1. CO² separated from pwr Station emissions
2. CO² is compressed + transported by pipeline to storage areas
3. It is injected into porous rock deep underground where it is stored permanently

Question 3

Weaknesses to CCS

Answer 3

It uses a lot if energy
- 20% of pp output to be separated to compress CO²

It requires storage reservoirs with specific geological conditions
- porous rock with impermeable strata

It costs a lot
- Peterhead cost £1bn

Takes time to do
- have to constantly monitor it

Question 4

Strengths to CCS

Answer 4

Could produce 20% of total energy by 2050

Could capture 1 mil tonnes of CO²/yr

Could pwr over 500,000 homes with clean energy

Could reduce emissions by 85%

Could maybe be used for other gasses in the future

70 billion tonnes of off-shore storage in UK

Question 5

Example of CCS

Answer 5

Peterhead
East Coast of Scotland
100km from North Sea