Cincinnati OH (SPX) Apr 10, 2023

At least five ice ages have befallen Earth, including one 635 million years ago that created glaciers from pole to pole.

Called the Marinoan Ice Age, it’s named for the part of Australia where geologic evidence was first collected in the 1970s.

Scientists say the Marinoan Ice Age was one of the most extreme in the planet’s history, creating glacial ice that persisted for 15 million y
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