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G1-922
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Geography (General)
2
carbon cycle
2
carbon dioxide
2
碳循环
2
CO2
1
International Straits Chain
1
Legal Status
1
NSR
1
NWP
1
chinese initiative
1
climate change
1
geo-culture
1
geo-economics
1
geo-setting
1
geopolitics
1
global change
1
global warming
1
primary production
1
prospects
1
regional cooperation
1
the "polar silk road"
1
the Arctic
1
the Arctic Ocean
1
the Southern Ocean
1
the arctic
1
the arctic region
1
二氧化碳
1
全球变化
1
全球变暖
1
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