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MIT: ‘Snowball Earth’ Came From Huge Drop in Sunlight

by Ryan Whitwam

Credit: Stephen Hudson/CC BY 2.5

The last ice age on Earth ended about 11,000 years ago, but that was just a few flurries compared to so-called Snowball Earth scenarios. Scientists believe Earth experienced several of these periods when the entire surface was covered by ice and snow. New research from MIT points to a potential mechanism for Snowball Earth events, and that could help…

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