Deep freeze!
What's on TV|July 22, 2023
Chris Packham reveals how our planet faced a terrifying early ice age...
HANNAH DAVIES, CAREN CLARK.
Deep freeze!

Around 700 million years ago, life on our planet was changed for ever due to a cataclysmic freeze that held the globe in an icy grip.

In this week's episode of Earth, Chris Packham explores how tectonic plates began to shift and created rifts in the Earth's crust, which led to carbon dioxide being sucked out of the atmosphere, causing temperatures to drop to -70°C.

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