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globalchange

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carbon(41)
population(30)
precipitation(24)
surface water(22)
nitrogen(21)
forests(19)
biomass(15)
carbon dioxide(15)
urban areas(14)
organic carbon(13)
vegetation(13)
density(12)
fertilizers(12)
oxygen(12)
rural areas(12)
emissions(11)
salinity(11)
erosion(10)
grasslands(10)
lakes(10)
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