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- 1126587
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- 2015-6-27
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- 1970-1-1
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• Researcher :Antarctica Ice: 14million years ago & equilibrium
○ Climate change: melting & precipitation
• Challenge: [D H]&[PNW] nonexistence :3million years ago
○ 1980 a rocky spine
§ Beech tree
§ Marine organism--diatom
□ ocean-floor 3million years
○ Ice sheet collapsed in 3million
§ Island
□ Tree: in T Mountain
□ Diatoms: in basin
§ Temperature ↓
□ Diatoms: shoved up
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