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globalchange

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population(22)
sea ice(16)
conservation(11)
biomass(6)
fisheries(6)
glaciers(6)
islands(5)
carbon(4)
density(4)
oceans(4)
carbonate(3)
lakes(3)
lead(3)
salinity(3)
surface water(3)
carbon dioxide(2)
chlorophyll(2)
clouds(2)
iron(2)
isotopes(2)
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