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Scotland and Ireland rock formation dating back ‘hundreds of millions of years’ shows historic global freeze, study says | Science & Tech News
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A Scottish and Irish rock formation dating back hundreds of millions of years could be evidence of what scientists call snowball Earth, a new study says. The snowball Earth theory proposes that the planet’s oceans and land were covered by ice during at least two extreme cooling events between 2.4 billion and 580 million years…