International Study Raises Questions About Cause Of Global Ice Ages
Friday, March 27, 2015 - 01:40
in Earth & Climate
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 ice sheets in the Northern Hemisphere. The findings appear in the journal Geology. A PDF is available on request. read more