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Tuesday, August 20, 2013

Earth orbit changes were key to Antarctic warming that ended last ice age

Earth orbit changes were key to Antarctic warming that ended last ice age
Seattle WA (SPX) Aug 20, 2013 - For more than a century scientists have known that Earth's ice ages are caused by the wobbling of the planet's orbit, which changes its orientation to the sun and affects the amount of sunlight reaching higher latitudes, particularly the polar regions. The Northern Hemisphere's last ice age ended about 20,000 years ago, and most evidence has indicated that the ice age in the Southern Hemis ... morehttp://www.terradaily.com/reports/Earth_orbit_changes_were_key_to_Antarctic_warming_that_ended_last_ice_age_999.html

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