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Published online 18 March 2004 | Nature | doi:10.1038/news040315-7
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Did cracking continent trigger a deep freeze?
The break-up of a supercontinent may have caused a 'Snowball Earth'.
The Earth might have been sent into an ice age by the break-up of a supercontinent 750 million years ago, creating a global snowball.
The break-up probably caused an increase in rainfall and weathering of rock, say climatologists.
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