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globalchange

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carbon(9)
organic carbon(7)
sediments(7)
vegetation(5)
biomass(4)
lakes(4)
organic matter(4)
population(4)
erosion(3)
isotopes(3)
nitrogen(3)
oil spills(3)
carbon dioxide(2)
degradation(2)
geochemistry(2)
hydrocarbons(2)
marine sediments(2)
metals(2)
paleoclimate(2)
precipitation(2)
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