How Volcanoes Froze the Earth (Twice)
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.
Thanks to Julio Lacerda and Franz Anthony from Studio 252mya for their wonderful illustrations. You can find more of their work here: 252mya.com/
Special thanks to Judy Pu for answering our questions about Snowball Earth.
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