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Antarctica
2
East Antarctica
Physical Sciences and Mathematics
2
South Pole
2
ice
2
ice core
2
air bubble
1
biogeochemistry
1
biomass burning
1
climate variation
1
climate-controlled variability
1
climatology
1
cooling
1
dichloromethane
1
dilution
1
gas chromatography
1
global warming
1
industrialization
1
isotopes
1
little ice age
1
little ice age cooling
1
mass spectrometry
1
medieval climate anomaly
1
methyl bromide
1
methyl chloride
1
mixing ratio
1
ozone
1
southern hemisphere
1
temporal variation
1
trend analysis
1
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