Researchers have been testing Milankovitch's theory for the past 100 years ... either parameter has remained unclear. Related: Giant ice age landforms discovered deep beneath North Sea revealed ...
Some theories suggest that changes in ocean circulation ... side of the Atlantic (e.g., Newfoundland). During the last ice age, massive continental ice sheets up to five km high covered much ...
However, a new Nature of Things documentary, Ice Bridge, outlines the theory of two rogue archeologists ... the northern Atlantic during the ice age 20,000 years ago. In prehistoric North America ...