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A plunge in incoming sunlight may have triggered 'snowball earths'

July 29, 2020 - General

At least twice in Earth’s history, nearly the entire planet was encased in a sheet of snow and ice. These dramatic “Snowball Earth” events occurred in quick succession, somewhere around 700 million years ago, and evidence suggests that the consecutive global ice ages set the stage for the subsequent explosion of complex, multicellular life on Earth.

The trigger for “Snowball Earth” global ice ages may have been drops in incoming…

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Source: archeo

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