Long debate ended over cause, demise of ice ages -- may also help predict future
Thursday, August 6, 2009 - 13:49
in Paleontology & Archaeology
CORVALLIS, Ore. -- Researchers have largely put to rest a long debate on the underlying mechanism that has caused periodic ice ages on Earth for the past 2.5 million years -- they are ultimately linked to slight shifts in solar radiation caused by predictable changes in Earth's rotation and axis.