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methyl chloride
2
ATMOSPHERE
1
Antarctica
1
CLIMATE
1
EAST ANTARCTICA
1
East Antarctica
1
GREENLAND
1
INCREASE
1
MASS
1
NMHC
1
POLAR ICE CORES
1
Physical Sciences and Mathematics
1
SNOW
1
SUMMIT
1
South Pole
1
TROPOSPHERE
1
biogeochemistry
1
biomass burning
1
climate variation
1
climate-controlled variability
1
climatology
1
cooling
1
dichloromethane
1
firn air
1
global warming
1
ice
1
ice core
1
little ice age
1
little ice age cooling
1
medieval climate anomaly
1
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