 Science News (@BreakingScience)21/12/10 14:10 How Earth's orbital shift shaped the Sahara http://bit.ly/fOtyzE via http://topicfire.com/Science |
| Science News (@BreakingScience) 21/12/10 14:10 How Earth's orbital shift shaped the Sahara http://bit.ly/fOtyzE via http://topicfire.com/Science |
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