Consuming Energy Resources Flashcards
Use of energy
Light homes
Power computers
Cook food
Non renewable
Being used up and can not be replaced
-finite
(Coal, oil, gas)
Renewable
Never run out, used up over and over again
-infinite
(Wind, solar, HEP)
Recyclable
-provide energy from sources that can be recycled/ reused
Biofuel
Wind farm
P- good for environment
N- ruins view
Wind turbines and solar panel
Large amount of land but can farm on sea
Open coal mining
Scar landscape but clean up land
Drilling for oil at sea
Risk of oil spill but ban offshore drilling
Hep development and deforestation
Can flood large areas of land but relocate endangered species of animals
Coal is formed
- 300million Years ago
- giant plants in swamps die they fork layers and when put under pressure
Open coal mine
Adv- plenty of coal available
Dadv- expensive
Why mining has declined
- cheaper foreign imports
- carbon taxes
- using other energy sources
- declining demand
- cheaper imported coal
- ghg emission
Potential renewable energy in uk
Wave power in w Scotland
Solar in S of Devon
Global energy has only grown very slightly
Cars use less fuel
Power stations waste less energy
Houses are better insulated
Most energy consumed
USA, China (Hic)
Small amounts of energy
Low income countries
Primary economy
Emerging
High energy use
Manufacturing
Daily oil consumption
1900- under 1 million
2015- 93 million
2030- 116 million
Consumption of oil increase
- population increase
- heating buildings
- fueling cars
High demand of oil…
Price rise
Price rise…
Falling demand
= lower price
Too much supply…
Price falls
Price falls..
Too little
= price rise
Oil price change
- demand
- supply
Fracking involves
Drilling down into the Earth and injecting shale rock with high-pressure mixture of water sand and chemicals to release gas inside
For drilling into the artic
- Quarter of the earths undiscovered oil
- USA becomes less dependent on other countries
- provide jobs for locals
- Offers huge potential revenue for oil companies
Against drilling in artic
- kills millions of organisms if oil spills
- causes conflict with other countries
- indigenous people rely on Artic animals for survival
- Cold and fragile so there is a lot of work
Costs of tar sand oil extraction
- huge amount of water and energy required
- 359 million tons of water
- More than 6 million birds lost by 2050
- pollution of lakes and rivers
Shale gas
-Natural gas trapped underground in shale rock
Can’t be drilled
Sustainability
Meets the needs of the current generation without compromising the ability of future generations to meet their needs
Carbon footprint
Calculation of the total greenhouse gases emissions caused by person, country, organisation, event, product
Direct carbon footprint
Created by burning fossil fuels for energy at home or transport
Indirect carbon footprint
Come with owning a product, from its manufacture to final disposal
Home improvements to conserve energy
Energy efficient boilers, double glazing, wall insulation
Improving transport energy efficiency
VED
- Rotax depend on level of pollution of vehicle
Reducing London is carbon footprint
London buses
Cycle hire sceme
Congestion charge
London buses
Hybrid since 2012
40% less co2 produced
Cycle hire sceme
Provide 6000 bikes
400 docking stations
Congestion charge
Raises revenue
Traffic fell
Energy security
Access to reliable and affordable sources of energy
Energy Diversification
Spreading energy sources around more types
HEP schemes
N- Floods local peoples homes and intermediate technology
P- Irrigated land and supply water to cities
Solar energy
N- Expensive to install and less affective in winter
P- can produce large amounts of electricity
Hydrogen fuels
N- expensive
P- clean and efficient
Carbon taxes
- establish price on greenhouse gas emission
- companies pay per tonne carbon
Carbon taxes good in theory
- reduce carbon
- find alternate renewable sources
Carbon taxes
Difficult in practise
- Gas price rise
- affect emerging and developing countries
Why agreement is difficult
- Climate change scepticism
- no global consensus
- countries have different level of development
- competent business interests may vary
Rising affluence
- by local products
- invest in more efficient cars
- development of renewable energy
Education
- educated of effects of global warming
- change attitudes
- local rather than global focus
Changing attitude
- more aware
- Green parties in elections
- environmental pressure groups
