http://blog.concord.org/wanted-cause-of-the-end-of-snowball-earth Revolutionary digital learning for science, math and engineering Thu, 16 May 2013 19:24:36 +0000 hourly 1 http://wordpress.org/?v=3.5.1 http://blog.concord.org/wanted-cause-of-the-end-of-snowball-earth#comment-5742 jkrawiec Tue, 02 Aug 2011 20:01:56 +0000 http://blog.concord.org/?p=930#comment-5742 It is probably not a single event, but several events. Some scientist have suggested volcanic eruption added CO2 into the atmosphere. Since the oceans were frozen over the major CO2 sink was missing, this help to start a massive greenhouse effect.

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