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project 1 reading - Coggle Diagram
project 1 reading
observations
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if continues, and duff burns off, alaska subsurface might start thawing, causing drastic changes
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burning duff causes an amplifying feedback loop where lower duff gets dry, allowing the lower layers to burn more easily
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extremely hot days being recorded, more fire
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higher temperatures also cause more thunderstorms which mean more lightning, more trigger for fire
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conclusion
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when ice thaws, fauna may thrive
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microbes take carbon from thawed permafrost, turning it into other greenhouse gasses, e.g. methane
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shift from conifers to deciduous (less flammable), and increased rainfall might offset predicted burn area
deciduous also reflect more sunlight, moderating climate feedback
background
alaska wildfire example
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by july 9, 99000 acres burned
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layer of organic material (plants and detritus) (duff) dry extremely quickly, very easy to start burning
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modelling results
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by 2050, alaska will see 59% more lightning
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