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globalchange

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carbon(244)
population(242)
conservation(139)
precipitation(131)
emissions(126)
density(109)
atmosphere(103)
lead(91)
forests(88)
heat(84)
carbon dioxide(81)
lakes(81)
velocity(80)
earthquakes(79)
nitrogen(78)
sediments(78)
surface water(74)
vegetation(71)
surface temperature(70)
biomass(65)
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