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New research sheds light on end of Snowball Earth period http://www.birmingham.ac.uk/news-archive/2015/new-research-sheds-light-on-end-of-snowball-earth-period-1
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New research sheds light on end of Snowball Earth period http://www.birmingham.ac.uk/news-archive/2015/new-research-sheds-light-on-end-of-snowball-earth-period-1
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