ESS Topic 7: Climate change and energy production

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Top energy sources

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35 Terms

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Top energy sources

Fossil fuels such as coal, oil, natural gas

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Energy consumption is higher in

Rich countries

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When poor countries industrialise

Newly industrialising countries (NICs)

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4

Example of a renewable resource

Timber

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5

Definition of renewable

Natural resources with a sustainable yield or harvest equal to or less than their natural productivity

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6

example of a non-renewable resource

fossil fuels

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7

example of fossil fuels

oil, coal, natural gas, shale gas

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8

Pros of oil

cheap, versatile, easy to transport, enough to be consumed for another 40 years, 2/3 found in the middle east

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9

Cons of oil

damage to coastlines / fish stocks / communities dependent on sea, water pollution, will eventually run out, burning it releases co2

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10

Pros of hydroelectric power (HEP)

renewable, clean form of energy that doesn’t emit greenhouse gases

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Cons of hydroelectric power (HEP)

very costly to build, need a lot of water but not many places have that much water, affects routes of migratory fish, increased evaporation behind the dam

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12

Pros of nuclear power

received support form the environmental movement, does not emit greenhouse gases

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13

Cons of nuclear power

very expensive, risks of radiation, chernobyl and fukushima, led japan to turn back on nuclear power

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14

Pros of coal

fostered the development of Western industrial growth, produces electricity, used in smelting industry, important in producing aspirin, steam coal is used to generate electricity

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15

Cons of coal

coal is dirty, bulky, costly, difficult to transport

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16

definition of energy security

availability of energy sources at an affordable price

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17

three factors of energy security

affordable supply, accessible supply, reliable supply

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18

example of greenhouse gases

carbon dioxide, CFCs, methane, nitrogen oxide

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19

sources of GFGs

energy, industrial processes, land use, agriculture, waste

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20

impacts of CLIMATE CHANGE

biomes shifting, change in crop-growing locations, change in weather patterns, human health, spread of tropical diseases, loss of species diversity, increased primary productivity

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21

Impacts of global warming

coastal inundation, impact on human health, changes in weather patterns.

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22

coastal inundation

flooding; intrusion of salty water on land / freshwater, coral reefs unable to sustain sufficient light, contamination of soils that decline agricultural production

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global warming impact on human health

more mosquitos that carry diseases, people forced to leave homes, saltwater intrudes agricultural land causing hunger / malnutrition

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global warming impact on changing weather patterns

increase of temperatures, changes in winds, changes in precipitation, continental areas become drier.

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positive impacts of climate change in the UK

increase in timber yields because more primary productivity, agriculture shifts to the north, increased potential for tourism because increased temperature

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negative impacts of climate change in the UK

increase in drought / soil erosion, increase of invasive species, increased demand for water, damage from flooding and erosion, increased infection from diseases

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positive feedback in global warming

increased temperature in polar areas causes increased melting of polar glaciers causes less albedo causes more solar energy absorbed by Earth’s surface causes increased temperature

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negative feedback in global warming

increased atmospheric energy causes increased evaporation from tropical areas causes increased precipitation in polar areas causes increased albedo causes cooling causes change in global temperature

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29

what is global dimming

a reduction in global temperatures as a result of pollution

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30

what causes global dimming

chemtrails reflect solar energy, has cooling effect

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31

mitigation techniques generally try to

reduction and / or stabilization of GHG emission and their removal from the atmospherer

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32

reduction techniques to reduce greenhouse gases

reduction of energy consumption (ex. public transport, energy conservation), reduction of nitrogen oxide / methane oxide in agriculture (ex. less chemical fertilizers), alternatives to fossil fuels (ex. more HEP, wind / solar energy), geo-engineering (ex. co2 capture from air, ocean fertilization)

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33

reduction techniques to reduce carbon emissions

carbon taxes (makes using Co2 more expensive), carbon cap & trading

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adaptation strategies generally consist of;

reducing adverse effects, maximizing positive effects

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35

examples of adaptation techniques

flood defense, vaccination programmes, planting crops in previously unsustainable climates

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