Earth

To make a ‘Snowball Earth,’ sci-fi moves fast. Geology is far slower

Earth has frozen over before, climate history shows (looking at you, Cryogenian Period)

Illustration of a person walking through a snowy, post-apocalyptic city with collapsed skyscrapers, buried cars, and heavy snowfall covering the ruins.

Earth shook off its last ice age around 11,500 years ago, long before skyscrapers, cars and Brooklyn Bridges existed.

Tung Nam

By Carolyn Gramling

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