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globalchange

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carbon(5)
atmospheric pressure(3)
coastal areas(3)
lead(3)
nitrogen(3)
ph(3)
population(3)
precipitation(3)
aerosols(2)
altitude(2)
atmosphere(2)
clouds(2)
conservation(2)
diffusion(2)
erosion(2)
monsoons(2)
nitrogen dioxide(2)
optical depth(2)
sulfur(2)
wetlands(2)
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