physical Flashcards

1
Q

how much c in atm

A

800GT

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2
Q

how much c in hydrosphere

A

58,000Gt

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3
Q

how much C is lithosphere

A

ovewr 99%

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4
Q

how much C in biosphere

A

3000Gt

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5
Q

sedimentary rock formation

A

deposited layers in low energy environments,
more layers, diagenesis, low layers compressed

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6
Q

limestone formation

A

10% carbon by weight
mountains, began as ocean sediments rich in calcium carbomate, sediments upfolded

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7
Q

shale and coal formation

A

remains of organisms
sank
covered by silt
decayed anerobically
compressed

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8
Q

terrestrial sequestration

A

photosynthesis, climate change increases temps, less plant growth and less absorption
animals, consume, repiration, to atmosphere, die, return to soil
vary diurnally and seasonally

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9
Q

biological pump

A

CO2 to surface ocean, phytoplankton and photosynthesis absorb
30% sinks to deeper waters

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10
Q

physical pump

A

moves carbon to different depths through down and upwelling
downwelled, carbon sinks to slow cycle
eventually return in thermohaline circulation

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11
Q

carbonate pump

A

sediments from dead organisms which fall to the floor, rich in calcium carbonate

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12
Q

human impacts on ocean cycle

A

increased ocean acidity
carbonic acid reactd with ions needed for organisms to create shells, therefore thinner and frangile
warmer oceans means decreased productivity for most plankton

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13
Q

Norway

A

11x more renewables than UK
mountainous and HEP since 1907
much of oil is exported
600 HEP sites provide 98% of renewable energy
gov doesnt allow foreign ownergsip of resources
policy for change in 2016, net zero by 2050

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14
Q

UK

A

1970’s coal dependent, among global leaders in nuclear
momentum lost after NS gas discovered, secure alternative to middle east
privatisation of industries mean overseas companies decide on energy source
40% gas
15% nuclear

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15
Q

players

A

OPEC
consumers
national govs
TNCs
national companies

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16
Q

national govs

A

securing supplies to meet current and future needs and economic growth
regualting private companies
taxation of oil
investments in new energy
drilling licenses

17
Q

TNCs

A

overlook environment
concerns for profit
less restrined by politics
shell $28bn profit in 2023
own supply lines
use capital in LICs to influence government decisions

18
Q

consumers

A

public opinion
safety of nuclear
pressure groups

19
Q

OPEC

A

12 nations
78% of petroleum supply
set production quotas for members
adjust price dependent on supply and demand
russia not joined
political element to decisions

20
Q

national companies

A

Gazprom
resource nationalisation
TNCs excludes
russia ukraine conflicts resulted in pathway disruption