International study raises questions about cause of global ice ages

International study raises questions about cause of global ice ages
Hanover NH (SPX) Mar 26, 2015 - A new international study casts doubt on the leading theory of what causes ice ages around the world - changes in the way the Earth orbits the sun. The researchers found that glacier movement in the Southern Hemisphere is influenced primarily by sea surface temperature and atmospheric carbon dioxide rather than changes in the Earth's orbit, which are thought to drive the advance and retreat of ... morehttp://www.spacedaily.com/reports/International_study_raises_questions_about_cause_of_global_ice_ages_999.html