Geoscientists suggest ‘snowball Earth’ resulted from plate tectonics

(University of Texas at Dallas) About 700 million years ago, the Earth experienced unusual episodes of global cooling that geologists refer to as 'Snowball Earth.' In a new study published in the April issue of the journal Terra Nova, two geologists at The University of Texas at Dallas and UT Austin suggest that those major climate changes can be linked to one thing: the advent of plate tectonics.

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