Topic
Antarctica
4
East Antarctica
4
Physical Sciences and Mathematics
4
South Pole
4
ice core
4
ice
3
little ice age
3
air bubble
2
biogeochemistry
2
biomass burning
2
climate variation
2
climate-controlled variability
2
climatology
2
cooling
2
dichloromethane
2
global warming
2
little ice age cooling
2
medieval climate anomaly
2
methyl chloride
2
mixing ratio
2
tropical vegetation
2
troposphere
2
twentieth century
2
Climate Action
1
Paleontology
1
Physical Geography and Environmental Geoscience
1
carbonyl compound
1
dilution
1
gas chromatography
1
industrialization
1
isotopes
1
mass spectrometry
1
medieval
1
methyl bromide
1
ozone
1
southern hemisphere
1
sulfide
1
temporal variation
1
trend analysis
1