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Threats to carbon and water cycles, human impacts to carbon cycle,…

- - - - by 1985 - reduced to 3.8 million
    - - growing due to international demand for tropical hardwood
        
        expanding population
        
        government encouraging farmer to clear more land - earn foreign currency to help repay debts
        
        debt and repayments
    - - less carbon able to be absorbed - flux - photosyensis
      - reduced water infiltrated - flooding
      - carbon stored in soil reduced due to roots decreasing
    - - waters of rivers - Sofia and Betisboka - turn red
        
        result of soil erosion - deforestation
    - - reduced annual rainfall
      - increased flood peaks
    - - more carbon in atmoshpere
- - - - Amazon basin plays key role in Earth's carbon cycle
        
        holds 17% of terrestrial vegetation
      - trees died/decline in growth rate
      - shut down function as carbon sink
        
        change to carbon sink - accelerating global warming
      - fires - released CO2
      - severe droughts in 2005 and 2010