topic 6- (EQ2)what are the consequences for people and env of our increasing demand for energy Flashcards

1
Q

What is the relationship between GDP and energy use per capita

A

as GDP increases so does energy use per capita

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2
Q

whats primary energy

A

refers to natural energy resources that have not been converted into another form of energy. it includes non renewable sources such as fossil fuels-( coal, oil and gas), nuclear (uranium) and renewable ( hydro, solar, wind, biomass)

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3
Q

whats secondary energy

A

refers to what the primary source has been converted to, usually electricity. can be heating

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4
Q

why is the UK energy insecure

A

the UK now imports more energy than it produces, it has an energy deficit(energy demand is greater than supply)

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5
Q

define enegry secuirty, enegry mix and enegry pathway

A
  1. situatation where there is a secure and affroadable supply of enegry to meet the needs of consumers
  2. the range of enegry sources used by a country- from renewables to non renewables
  3. the route by which an enegry type is transferred from a production area to the consumption area.(pipeline)
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6
Q

what are 6 reasons why energy mix varies

A

-physical availability-climate affects avalibality
-cost
-technology
-political considerations
-level of economic development
-environmental priorities- cultures view env differently eg russia sees natuer as a provider of resources

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7
Q

talk about the physical availability of energy in the uk compared to norway.

A

uk- used to depend heavily on domestic coal and now found oil reserves
Norway- steep valleys, plentiful rainfall and mountainous = HEP readily available

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8
Q

talk about the cost of energy resources in the uk and norway (extraction and hep)

A

uk- north sea oil is expensive to extract so if global prices fall, its less viable(not worht it, it’s less profitable)
Norway- the cost of HEP is low however the transfer of it to rural areas is expensive.

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9
Q

talk about the technology in the UK and Norway and how it leads to an energy mix

A

uk- theres 150 years worth of reserves but its expenisve to extract- may get energy elsewhere
Norway- deepwater drilling allowed Norway and UK to extract North sea oil and gas

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10
Q

talk about political considerations of the UK and Norway and how it leads to an energy mix.

A
  1. Public concern over fracking sites
  2. privatisation of enegry supplies means overseas companies decide whch enegry sources are used to meet the uks demand.
    Norway- Norweigian gov- foreign companies cant own primary source sites here.
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11
Q

talk about level of economic development and why that makes a places energy mix vary.(prices)
Norway vs UK

kutnez curve

A

UK- average annual household energy costs=£1300
enegry use per capita= 2752 kg oil equivalent

Norway- average annual household energy costs=£2400
enegry use per capita= 5854 kg oil equivalent

a cold climate, expensive infrastructure, and policy choices around sust

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12
Q

talk about environmental priorities and why that makes a places energy mix vary.

A

uk- in 2015, the UK committed to a 40% reduction in domestic greenhouse gas emissions by 2030.
norway- in 2015, Norway committed to a 40% reduction in domestic greenhouse gas emissions by 2030.
norway is the 3rd largest exporter of hydrocarbons

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13
Q

what happens if a chokepoint is blocked

A

energy prices can rise quickly

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14
Q

talk about an energy pathway disruption that occurred in the uk

A

during a stormy winter in 2013, UK gas reserves fell to 6 hours worth as storm damage paralysed a pipeline.

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15
Q

despite the increasing concern about carbon emissions, what is still used

A

fossil fuels

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16
Q

4 ways we can transport energy

A

-pipeline overland ( oil and gas)
-bulk carrier ships (coal and uranium)
- tankship (coal and LNG)
-underwater cables (electricity)

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17
Q

what are the two types of obstacles to energy pathways

A

physical and human

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18
Q

physical and human obstacles to energy pathways + egs

difficult terrain

A
  • vast distances
    -natural hazrads -hurricane season gulf of mexico/earthquakes
    -difficult terrain eg tundra in alaska
    -seas/oceans
    -runs out of supply eg north sea

unstable locos-middle east and russia
* embargoes eg from Iran and Russia.
* chokepoints
* Political tensions and disagreements may block pathways (choke points) e.g. Russia/Ukraine.

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19
Q

what are the 4 unconventional fossil fuels

A

deep water oil, tar sands, oil shale, shale gas (fracking)

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20
Q

unconventional fossil fuels: deep water oil
- explanation-
-positives-
-negatives-

A
  • explanation-
    found in Gulf of Mexico, (largest and deepest oil fields is Atlantis)
    Oil and gas that is found well offshore/ oceanic depths.
    Drilling takes place from ocean rigs
    -positives-
    improve a countries energy security- gives domestic (in country) energy supply
    many barrels can be produced
    -negatives-
    drilling into deep water is not easy and there are hurricanes as well as long distances to shore
    -long pipelines needed
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21
Q

unconventional fossil fuels: tar sands
- explanation-
-positives-
-negatives-

A

l- explanation-
tar sands are a mixture of clay, sand, water and bitumen (very viscous oil). the oil is too thick to be pumped from the ground, instead it must be taken from an open pit, or strip- mined. To recover the oil, it must be separated from the sands using very hot water diluted with lighter hydrocarbons
-positives-
when oil prices are high, it becomes economical to extract the oil from the sands
its raised GDP per capita in some places
offers energy security
-negatives-
large amount of energy are needed
contributes to global warming 3 times higher than conventional oil
mining process leaves scars on the landscape
impact wildlife

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22
Q

unconventional fossil fuels: oil shale
- explanation-
-positives-
-negatives-

A
  • explanation-
    contains solid bituminous material (kerogen) that forms when slit and organic matter were heated and pressurised under water , but not enough to turn it into oil. oil shale van be mined, but must be heated to a high temp to release the oil
    -positives-
    The royal Dutch shell has developed a plan to heat shale underground surrounded by a freeze wall so that the kerogen seeps out into drilled holes for collection
    provides a domestic/ reliable supply
    -negatives-
    expensive and releases greenhouse gasses
    disturbs land vegetation cover
    produces waste- water and air pollution
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23
Q

unconventional fossil fuels: shale gas (fracking)
- explanation-
-positives-
-negatives-

A
  • explanation-
    Natural gas that is trapped in fine-grained sedimentary rocks. Extracted by fracking: pumping in water and chemicals forces out the gas..The method consists of rock must be broken to free the gas which is done by hydraulic fracturing (fracking); involves horizontal and vertical drilling
    -positives-
    increasing energy reserves for a country and reducing needs for imports
    its a flexible energy source
    -negatives-
    many drill sites are needed.
    lowered local groundwater levels
    chemical contamination
    adds to greenhouse effect
    subsidence
    shale gas= fossil fuel
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24
Q

what an embargo

A

a complete ban on trade

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25
in the early 1970s, western countries experienced an energy crisis, why
OPEC placed an embargo on the sales of crude oil to the usa, Japan, uk and the Netherlands
26
what have drastic increases in oil prices lead countries to do
countries have diversified their primary energy resources so have less of a dependence on a certain country
27
what are 2 developments that are fundamentally changing the global energy system
1. the unconventional oil and gas revolution (shale gas) that has signalled a new era of fossil fuel abundance 2. COP26
28
What led to the age of fossil fuel abundance fossilk lfuels main source of enegry
In the USA a technique has been perfected that uses horizontal drilling, fracking then takes a matter of hours
29
2 problems associated with developing renewable energy
1. Raw materials hard to get win turbines need solar panles and speacila materials only found in certain countries-politcial and suplly issues 2. unreliable supply -wind and solar only works if sun and wind is prensent
30
what is base load energy
a consistent, unbroken supply of energy
31
what was Germanys response to the Fukishima disaster
- closed 8 nuclear reactors immediately
32
challenges germany has faced since closing 8 nuclear stations
- a greater unexpected reliance on coal has raised geopolitical considerations.
33
whats hinkley point C
the new nuclear PowerStation in the Uk, Somerset
34
economic benefits of nuclear power in the UK
- a step towards energy security -nuclear is produced at home-lack of reliance in other countries
35
safety concerns of nuclear
-fukushima -radiation leaks -dealing with waste (ongoing issue)
36
nuclear recyclable- COSTS ENV SOC ECON
ENV -contaminate water with radiation -natural hazards cause concern SOC -nimby (not in my backyard), controversial due to health implications if power plant fails -natural hazards cause concern- fukushima ECON -expensive to build
37
nuclear recyclable- BENEFITS ENV SOC ECON
ENV -less c02 emissions- less global warming SOC -create jobs ( Hinkley point provided 25,00 jobs) ECON -very efficient energy, jobs created
38
solar, renewable- COSTS ENV SOC ECON
ENV -uses a large amount of land- could be used for farming -toxic chemicals and energy goes into making cells SOC -for individuals, its expensive ECON -no sun= no energy- unreliable -uses a large amount of land- could be used for farming
39
solar, renewable-BENEFITS ENV SOC ECON
ENV less co2 emissions reduces pollution SOC chapel lane solar farm provides 60000 houses with electricity reduces pollution ECON can save money in the long term- individuals can sell surplus energy back to the grid for profit- can be used by poorer countries flexible and modular-csn be used on roof buildings can be used in poorer countries
40
wind, renewable - COSTS ENV SOC ECON
ENV noisy- in paths of bird migrations SOC nimby- some people do not like the aesthetics-not natural noisy ECON initial expense to maintain
41
wind, renewable - BENEFITS ENV SOC ECON
ENV less co2 emissions SOC no air pollution better health jobs provided ECON provides jobs- 2000 construction jobs provided by offshore wind turbine projects off the coast of Yorkshire- Hornsey project 1 long term= saves money
42
whats biofuel
any fuel peoduced from orgamic matter- that is plant or algae material or animal waste
43
SWOT ANALYSIS OF BIOFUEL strengths, weaknesses, opportunities, threats
STRENGTHS -lower emissions than fossil fuels -renewable energy resource -does not need specialist machinery WEAKNESSES - clearing the forest to grow crops means loss of carbon sink -needs pesticides and fertilizers which uses fossil fuels in their production -takes land from food production OPPOURTUNITIES -positive multiplier effect in rural regions -infrastructure improvements provided by growers -fuel earns export income- provides rural inwards investment THREATS -contaminates water sources with pesticides or the overuse of fertilizers -takes investment away from food production - food shortages occur leading to higher food prices
44
human factors affecting energy pathways
-political tensions and disagreements, pathways will be blocked at 'chokepoints' - armed conflicts -embargo and sanctions -technical problems such as pipeline leaks
45
what are the 5 radical energy solutions
-hydrogen fuel cells -nanotechnology -nuclear fusion -electric vehicles -carbon capture storage
46
what are advantages and disadvantages of the radical energy solutions : HYDROGEN FUEL CELLS
+no direct emissions, water is the only waste product +good range of distance u can drive with one fuel +fuel cells are efficient -not many hydrogen refulling stations -expensive
47
what are advantages and disadvantages of the radical energy solutions : ELECTRIC VEHCILES
-lengthy recharging -few charging points in some areas -short range (distance it can travel) -expensive to buy +reduces air pollution in urban areas +lack of noise pollution +cheap to run +there over 60,00 charging points +best suited fro urban areas +zero carbon emissions
48
what are advantages and disadvantages of the radical energy solutions : CARBON CAPTURE AND STORAGE
- safety concerns-pumping large amounts of liquid co2 into rock- stability? -co2 leakages may occur +reduces emissions by 90% b pumpng co2 undeground and selling it to oil companies. +reliable
49
what are advantages and disadvantages of the radical energy solutions : NUCLEAR FUSION
+no long term radiation +no greenhouse gasses +german gov has alloctaed over 1.46 b for research +clean -long way from becoming a reality -expensive
50
what are advantages and disadvantages of the radical energy solutions : NANOTECHNOLOGY
+could replace fossil fuels (solar fuels could replace this -still in infancy(very new/still developing. + can use microorganisms or enzymes to harvest light energy
51
what type of unconventional fossil fuel is banned in the EU
tar sands
52
in 2015, how much of the UKs energy was from fossil fuels?
80%
53
how did Germany respond the the Fukushima disaster
Germany immediately closed down 8 of its nuclear power reactors and pledged to close all 17 by 2022
54
how did the UK diversify its energy in 2016
in 2016, the UK opened Hinkley point C which is a nuclear power station. -this provided 25,000 jobs
55
the UK is energy insecure, what percentage of its energy is imported?
60% of its energy is imported
56
state +/- about Brazils Biofuels
+Brazil is the world leader in producing bio-ethanol -downside= deforestation - farm workers have lost land that is now dedicated towards growing sugar cane +cars running on bioethanol emit 80% less CO2 than petrol driven cars
57
what are the positives of tar sands
by 2030, it could meet 16% of North Americas oil needs
58
what are the negatives of tar sands
- around 1.8 million tonnes of toxic wastewater are produced every day
59
# what what is enegry security
a constant supply of energy at an affordable price
60
what is a chokepoint
geographic locations where the flow of people and goods can be constricted and choked off in the event of a conflict.
61
what are the 4 enegry players
1. OPEC 2. roles of tns 3. national gov 4. consumers
62
what is the role and egs of thr role of tns
role: TNCs explore, expoilt and distribute energy resources, own supply lines, INVEST IN DISTRIBUTION AND PROCESSING RAW MATERIALS, electricity, production and transamission eg: old players- BP(UK), shell new players-Petrobras(Brazil)
63
what is the role and eg of OPEC
role: coordinate and unify the petroluem policies. .steady income for producers .effiecent and regualr supply of petroleum to comsumers. egs: past, set oil productions quotas- boosting supplies when demand rose and reducing them when demand fell. now, maintaining output uat high levels kept oils prices low.
64
what is a enegry pathway and egs
is the flow of energy between a producer (source areas) to consumer (areas of demand). Russian gas is delivered to Europe mainly through five pipelines:
65
what is the role and eg of national governments -danish model
role: regulating role of private companies and setting environemntal priorities securing enegry supplies-present and future denmark has a diverse enegry mix wind turbines produce 40% of thier enegry in 2015 116% of its national electricty needed for turbines was abe to export enegry to neighouring countries eg norway. agreements made with norway eg HEp from norway passes experieneces to china to make them more sustainable. aims look at mindmap
66
what is the role and factros affcetiong consumers attitudes of consumers
role: create demand, PURCHASING CHOISES BASED ON PIRCE ISSUE eg petrol competition with markets . consumers have power over oil companies eg purchasing electric cars, solar pannels . expansions of nuclear enegry, frackign
67
# wh what is a enegry pathway
flow of energy between producer and consumer. how it reaches coonsumer eg pipelien.
68
# what what can chokeholds negatively cause
political tensions and disagreements may lead to pathways being blocked (at chokepoints)
69
what can cause disruptions in russia
ff are in ustable locations embargoes disruot production and supply.
70
what is the % of totsl trade in oil from russia to europe
10.63%
71
CASE STUDY- brazilian deep water oil production state, facts, postives and negatives
facts- develpoing a deep-water oilfield in 2006, reserves of 50-80barrels, production of 885,000 barrels a day. the oilfield is 300km offshore. postives * diveristy of the engry mix, provide enegry security. * droughts reduce, * income from exports negative * drilling condiitoons are difficult- flammable gases. * high costs * job loss
72
CASE STUDY- tar sands in canada state, facts, postives/plans and negatives
facts- reserves of 166 b barrels of oil. production increased from 0.1m to 2.3m in 2014 postives- 151,000 jobs have been created- 2013 Environmental monitering: checks air, water and human health. negatives * pollution remains a concern * corcens of leakage in groundwaters and rivers * effects healht of local people.
73
CASE STUDY biofuels in brazil state negative and positives
positives * today brazil is the biggest producer of ethonal from sugar cane * vechicles rely on ethonal and pertrol * 1.34 million direct jobs are provided * rduces ghgs by 90% negatives -increase pollution -deforetstaion occurs-more co2 added to the atmosphere, contributing to global warming. -competetion between other countries -clears away such as amazon rainofrets which could be used for food ---production- increases food market.
74
numerically compare the difference between uk(1980-2012) and norway(1970-2010) energy mix
uk=- increase of gas by 20% norway= no gas in 1970 20% gas in 2010, decrease of nonrenewbles.
75
why is opec so important
It has around 73% of the world’s oil reserves It has the power to significantly affect oil prices by increasing or decreasing production
76
What 3 processes allowed fossil fuels to form?
Compression from the weight of the land, micro-organisms decomposing the contents, heat from underground turns the dead plants and animals into fuels.
77
What is the difference between where coal, oil and gas were derived from?
Coal is from ancient plants whilst oil & natural gas is from marine creatures
78
disruption to energy pathways can cause
Recession Job losses Energy shortages affecting lifestyles Armed conflicts
79
what is a fragile environment
An environment extremely sensitive to environmental shifts and changes
80
what is the main cause fo increased GHGs emissions
popoulation- higher demand from households and businesses, transport and deforestation.
81
what does teh UN predict about the population
will reach 9n by 2030
82
what is the world enegrys councils 3 objectives
1. enegry security:ensuring enegry supplies meet current future demands 2. enegry equity; assessibilty and afforable enegry for all countries 3. env sustainability;