physical Flashcards
how much c in atm
800GT
how much c in hydrosphere
58,000Gt
how much C is lithosphere
ovewr 99%
how much C in biosphere
3000Gt
sedimentary rock formation
deposited layers in low energy environments,
more layers, diagenesis, low layers compressed
limestone formation
10% carbon by weight
mountains, began as ocean sediments rich in calcium carbomate, sediments upfolded
shale and coal formation
remains of organisms
sank
covered by silt
decayed anerobically
compressed
terrestrial sequestration
photosynthesis, climate change increases temps, less plant growth and less absorption
animals, consume, repiration, to atmosphere, die, return to soil
vary diurnally and seasonally
biological pump
CO2 to surface ocean, phytoplankton and photosynthesis absorb
30% sinks to deeper waters
physical pump
moves carbon to different depths through down and upwelling
downwelled, carbon sinks to slow cycle
eventually return in thermohaline circulation
carbonate pump
sediments from dead organisms which fall to the floor, rich in calcium carbonate
human impacts on ocean cycle
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
Norway
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
UK
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
players
OPEC
consumers
national govs
TNCs
national companies