How Volcanoes Froze the Earth (Twice) - S3.E22 - Eons
Over 600 million years ago, sheets of ice coated our planet on both land and sea. How did this happen? And most importantly for us, why did the planet eventually thaw again? The evidence for Snowball Earth is written on every continent today.
How Volcanoes Froze the Earth (Twice) - S3.E22 - Eons
July 17, 2019
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