What likely caused the extreme ice-age more than 700 million years ago?
Australian geologists have used plate tectonic modelling to determine what most likely caused an extreme ice-age climate in Earth’s history, more than 700 million years ago. The researchers have proposed that all-time low volcanic carbon dioxide emissions triggered the 57 million year-long global ‘Sturtian’ ice age. The extended ice age stretched from 717 to 660…
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