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globalchange

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carbon(8)
nitrogen(8)
population(8)
vegetation(7)
biomass(5)
humidity(5)
precipitation(5)
surface water(5)
emissions(4)
fertilizers(3)
lakes(3)
soils(3)
conservation(2)
density(2)
drought(2)
grasslands(2)
mortality(2)
nitrate(2)
oxygen(2)
radar(2)
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