Modern day scourge helped ancient Earth escape a deathly deep freeze

(PhysOrg.com) -- The planet’s present day greenhouse scourge, carbon dioxide, may have played a vital role in helping ancient Earth to escape from complete glaciation, say scientists in a paper published online today.

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<p><a href="http://www.physorg.com/news147361639.html">Modern day scourge helped ancient Earth escape a deathly deep freeze</a></p> <p>(PhysOrg.com) -- The planet’s present day greenhouse scourge, carbon dioxide, may have played a vital role in helping ancient Earth to escape from complete glaciation, say scientists in a paper published online today.</p>