effects of changing carbon budget

Question 1

the levels of carbon change throughout history, how much higher was the amount of carbon 500 million years ago?

Answer 1

20 times

Question 2

what can the carbon cycle impact?

Answer 2

oceans, land and atmosphere and climate

Question 3

how does the carbon cycle impact the land?

Answer 3

no carbon in the atmosphere then plants would not be able to photosynthesis and therefore grow
dead animals ow never be decomposed inhibiting recyclin effect
chnage in carbon cycle can reduce how much carbon is stored on the land
increase in wildfires

Question 4

if permafrost in northern hemisphere was to thaw how much would temp rise by and when?

Answer 4

0.7 by 2100

Question 5

how can carbon cycle impact oceans?

Answer 5

ocean acidification

global warming

Question 6

how can ocean acidification have an impact on oceans?

Answer 6

dissolving co2 into oceans causes carbonic acid

this reduces the biodiversity marine life as some species cannot live in acidic waters

Question 7

when calcium carbonate reacts with calcium ions what does it make?

Answer 7

biocarbonate

Question 8

how can ocean warming have an impact?

Answer 8

product of climate change
decrease the phytoplankton
limits the oceans ability to act as a carbon pump as less cold water to sink
warmer water also less able to hold more co2 due to expansion so it stays in atmosphere

Question 9

why does melting of ice have a feedback effect that impacts the ocean?

Answer 9

when sea ice melts it cannot reflect sunlight anymore so more sun is absorbed by oceans increases the warming effect w

Question 10

how does thermal expansion play a part?

Answer 10

when oceans heat up water molecules expand therefore rising sea levels

Question 11

impacts on the atmosphere?

Answer 11

cause temperatures to rise

Question 12

how do greenhouse gases cause climate change?

Answer 12

greenhouse gases absorb infrared heat and then reemit it back onto earth heating the surface