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XT Liu
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African Humid Periods
Paleoclimate and archaeological evidence tells us that, 11,000-5,000 years ago, the Earth's slow orbital 'wobble' transformed today's Sahara desert to a land covered with vegetation and lakes. see more  deMenocal, P. B. & Tierney, J. E.  (2012)  Green Sahar...
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又是一年的 phd day
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AGU fall meeting
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sf
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chrome 里不能打开??
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urbino 
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Uni Bremen ist exzellent!
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