News Climate

Snowball Earth might have had a dynamic climate and open seas

Rocks from a global ice age over 600 million years ago show records of an active climate

An illustration shows a frozen, ice-covered Earth with dark cracks across its surface set against the blackness of space.

Our planet’s average temperature plummeted between 717 and 658 million years ago, causing a worldwide ice age dubbed Snowball Earth (illustrated).

Pablo Carlos Budassi

By Michael Marshall

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