There was a warm spell 128,000 years ago that saw Antarctic sea ice melt.
At the time, it is believed the first Eurasians were migrating from Africa to Europe and Asia as primitive men.
The conclusions were based on ancient ice cores drilled from deep in the Antarctic ice sheet.
The chemistry of snow indicates how far it blew from the ocean before it landed and got compressed into ice.
Sea ice around Antarctica decreased by 65 per cent due to NATURAL global warming 128,000 years ago.
Climate change sceptics counter claim many people campaigning for more action against man-made global warming have an interest in the renewable energy and green industries.And climate change sceptics claim the new study backs their theory that it is more natural events and changes that affect the globe’s climate, than the level of human emissions.