Case Study: UK GHG Emissions Flashcards Preview

OCR A Level Geography > Case Study: UK GHG Emissions > Flashcards

Flashcards in Case Study: UK GHG Emissions Deck (19)
Loading flashcards...
1

Timeline: 1751

CO2 emissions at 2,252,000 tonnes. Pre-industrial so agriculture and manufacture didn't use machinery that was powered by fossil fuels.

2

Timeline: 1800s

Coal-powered industrialisation took off. By 1850 CO2 emissions were at 33,468,000 tonnes.

3

Timeline: 1916

Coal production peaked at 137 million tonnes.

4

Timeline: 1900s

Occasional dips in emissions due to falls in GDP and economic activity e.g miner's strikes in 1921 and 1980s, leading to less coal production.

5

Timeline: 1971

CO2 emissions peak.

6

Timeline: 1790s

Shift away from coal as the primary fuel for electricity generation towards cheaper natural gas.

7

Timeline: 1980s + 1990s

Development of nuclear power stations and renewable resources.

8

Timeline: 2011 onwards

Further drop in emissions due to energy conservation through energy efficient homes/factories, and due to international obligations to reduce emissions e.g. Kyoto.

9

Timeline: 2014

Carbon emissions fell by a record 9% from the previous year. This may be due to a mild winter leading to a fall in demand for heating. Coal consumption was the lowest since 1850. 2 major coal power stations decommissioned and the largest (Drax, N. Yorkshire) switched to biomass. 15% of electricity generation came from renewables.

10

9 sectors of UK GHG output : Agriculture

Contributes 10%
Emissions decreased by 17% since 1990
Mainly CH4 from digestion of food, fermentation, and animal waste
Fertilisers release CO2 from urea breakdown

11

9 sectors of UK GHG output : Business

Contributes 17%
Emissions decreased by 26% since 1990
Mainly CO2 from machinery or generators
Hydrofluorocarbons from solvents and fire extinguishers

12

9 sectors of UK GHG output : Energy Supply

Contributes 29% (biggest contributor)
Emissions decreased by 48% since 1990
Mainly CO2 from power generation or fuel manufacture

13

9 sectors of UK GHG output : Industrial Processes

Contributes 3%
Decrease by 79% since 1990
Mainly from cement production or iron/steel sector

14

9 sectors of UK GHG output : Land Use, Land Use Change, and Forestry

Contributes -7.4% due to carbon sinks

15

9 sectors of UK GHG output : Public Sector

Contributes 2%
Emissions decreased by 40% since 1990
Fuel combustion in public sector buildings e.g. schools

16

9 sectors of UK GHG output : Residential

Contributes 13%
Decreased by 17% since 1990
Emissions from fuel combustion for heating, cooking, aerosols

17

9 sectors of UK GHG output : Transport

Contributes 24%
Decreased of 2% since 1990
Aviation, railways, road transport etc...

18

9 sectors of UK GHG output : Waste Management

Contributes 4%
Decreased by 73% since 1990
Mainly CH4 as waste decays in low O2

19

The future?

The government's drive to decarbonise will likely lead to further reductions in carbon emissions.