Cycle Links & Human Activity

Question 1

Major link between carbon and water cycle:

Answer 1

Rising temp -> permafrost melts -> more carbon released

Question 2

How does population growth affect water and carbon cycles?

Answer 2

Population growth -> deforestation and urbanisation -> less intercept/absorption/ CO2 uptake -> affects flows and stores

Question 3

How does deforestation affect the carbon cycle?

Answer 3

Deforestation -> Global forest coverage reduced by 50% -> Carbon storage in biomass reduced -> Ocean acidification and more in atmosphere

Question 4

Impact of increased temperature on TRF and carbon cycle:

Answer 4

High temp -> more decomposition -> reach tipping point -> 4 degree inc in temp kills 85% of forest

Question 5

What does ocean acidification mean for phytoplankton?

Answer 5

Ocean acidification means less photosynthesis by phytoplankton -> less carbon stores in ocean