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globalchange

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carbon(5)
salinity(5)
atmosphere(4)
lakes(4)
nitrogen(4)
population(4)
emissions(3)
forests(3)
mortality(3)
oceans(3)
surface water(3)
carbon dioxide(2)
conservation(2)
lead(2)
methane(2)
ph(2)
sediments(2)
soils(2)
sulfur(2)
vegetation(2)
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