carbon cycle and energy security Flashcards

1
Q

what are unconventional fossil fuel sources (uffs)

A

less accessible fossil fuel resources

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2
Q

what are the 4 types of UFFS

A
  1. fracking
  2. tar sands
  3. oil shale
  4. deep water oil
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3
Q

what is fracking

A

extracting natural gas from shale
high pressure fluid is pumped into rock causing it to crack, which releases a gas that’s collected
USA has 1.7mill fracking reserves

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4
Q

what is tar sands

A

a sediment that contains bitumen and is extracted by minings the sediment and then extracting the oil
it takes 2 tonnes of tar sands to make 1 barrel of oil
happens in Canada

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5
Q

what is oil shale

A

extracting oil from a rock
when the rock is placed under high pressure + heat, shale oil is released

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6
Q

what is deep water oil

A

deep ocean rigs allow for drilling to take place
happens in Brazil

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7
Q

what are the issues with UFFS

A

all have massive environmental impacts and as FF reserves deplete, these may become protected areas or exploited areas

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8
Q

“as fossil fuel reserves _______ the price of fossil fuels ______ “

A

deplete
rises

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9
Q

costs of UFFS

A
  • tar sands and oil shale exploitation takes place through open-cast mining (which leads to large areas of land that’re dug up and left open) which leaves scars on the landscape and has long lasting effects to biodiversity
  • deep water oil drilling increases the change of oil spillings that can impact marine life and contaminate water
  • fracking can lead cause minor earthquakes and land subsidence as well as contaminates drinking water
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10
Q

benefits of UFFS

A
  • can provide employment e.g. employment and transportation
  • some economists argue that it makes sense to exploit FF resources while they’re still available
  • companies that develop unconventional FF are in competition with conventional FF, meaning consumers can benefit from lower energy prices
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