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CU study shows how early Earth kept warm enough to support life

Solving the «faint young sun paradox» — explaining how early Earth was warm and habitable for life beginning more than three billion years ago even though the sun was 20 percent dimmer than today — may not be as difficult as believed, says a new University of Colorado Boulder study.

Fuente : http://www.eurekalert.org/pub_releases/2013-07/uoc…

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