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Impacts on vegetation and soil
Store both water and carbon, decomposition releases co2 to atmopshere, Soil can be leached by too much water, C is lost
Impacts on Oceans
Cold oceans absorb more co2, warm oceans absorb less, so co2 is constantly moved from poles to tropics. Ocean acidification takes place due to excess carbon in atmosphere being absorbed into the ocean.
Impacts on cryosphere
Permafrost system melting releases both water and co2, creates positive feedback loop as co2 released,
Albedo Positive feedback
more ice = more white = more reflect = less solar insolation absorbed = more ice or less ice = less white = less reflect = more solar insolation absorbed = less ice
impacts on atmosphere
Co2 released into atmosphere, Global warming and more insolation absorbed, Leads to enhanced greenhouse effect
What acid = acid rain and ocean acidification?
Carbonic acid
Rainfall impacts
Water falls and is transferred to ground stores or rivers seas etc, contains carbonic acid - acidic and leads to acid rain, weathering and ocean acidification
Plants and trees do?
Store carbon and water,
Tropical rainforest phenomena
Create own rainfall and microclimate
Impact of deforestation
Micro climate is destroyed, so rain is not created, so areas downwind of the deforested area experience sever drought, kills even more of the forest.
Deforestation impacts on carbon
Store of carbon dramatically decreases as: Biosphere destroyed and soil has no decay taking place, so lithosphere reduces
Impact of acid rain
accelerates chemical weathering and breakdown, and increases ocean acidification
Three types of sea level rise
warm of world expands the ocean, more water is added e.g melt permafrost, or more water is drained e.g. over abstraction or irrigation.
threshold
Consequence of causing x, tipping point, cannot undo the impacts past this point, the limit