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globalchange

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active layer(2)
permafrost(2)
precipitation(2)
agriculture(1)
carbon(1)
carbon dioxide(1)
clouds(1)
deserts(1)
drought(1)
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evaporation(1)
geomagnetism(1)
grasslands(1)
irradiance(1)
landscape(1)
organic matter(1)
soil temperature(1)
sunspots(1)
tree rings(1)
vegetation(1)