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Environmental sciences
3
Environmental technology. Sanitary engineering
3
GE1-350
3
Physics
Q
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QC1-999
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Science
3
TD1-1066
3
methane
Arctic
1
CO2 flux
1
beavers
1
carbon dioxide
1
carbon dioxide exchange
1
climate change
1
ice-wedge polygons
1
net ecosystem exchange
1
peat
1
permafrost
1
permafrost erosion
1
thermokarst
1
tundra
1
tundra ponds
1
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