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BBC: ‘Snowball Earth’ could have been slushball
BBC: 'Snowball Earth' could have been slushball,BBC News highlighted research by a University of Cincinnati geologist who examined an ice age 635 million years ago that many scientists believed

BBC: ‘Snowball Earth’ could have been slushball

BBC News highlighted research by a University of Cincinnati geologist who examined an ice age 635 million years ago that many scientists believed