Earth would be heading to a freeze without CO2 emissions

Scheduled shifts in Earth's orbit should plunge the planet into an enduring Ice Age thousands of years from now but the event will probably be averted because of man-made greenhouse gases, scientists said Wednesday.

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<p><a href="http://www.physorg.com/news145725882.html">Earth would be heading to a freeze without CO2 emissions</a></p> <p>Scheduled shifts in Earth's orbit should plunge the planet into an enduring Ice Age thousands of years from now but the event will probably be averted because of man-made greenhouse gases, scientists said Wednesday. </p>