Why Did the Earth Totally Freeze for 100 Million Years?
This documentary explores why Earth may have frozen almost entirely for tens of millions of years, an episode often called Snowball Earth. It follows the geological clues, from tillite rocks to banded iron formations, that reveal a planet locked in ice. It turns deep-time science into a clear and gripping story. It is a fascinating watch for anyone curious about the extremes our planet has survived. Free to watch in HD on Dr Documentary.
Courtesy of Documentary on YouTube. Watch on YouTube ↗
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