THE debate over man-made climate change has been turned upside down following the discovery there was a catastrophic Antarctic sea ice shrinkage more than 100,000 years ago… when mankind was still in loin cloths.
There was a warm spell 128,000 years ago that saw Antarctic sea ice melt.The newly discovered naturally-caused warm spell 115,00 to 130,000 years ago has given support to the claim global warming can happen without man’s interference, according to sceptics of human-caused climate change.However, those campaigning for more to be done to limit carbon emissions to prevent future global warming are also using the new research in support of their case.Winter sea ice around Antarctica shrank 65 per cent in a natural warm period between Ice Ages about 128,000 years ago, when temperatures were slightly warmer than now, according to the new report in the journal Nature Communications.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.
NASA
Sea ice around Antarctica decreased by 65 per cent due to NATURAL global warming 128,000 years ago.
Climate change deniers argue the impact of human carbon emissions on the Earth’s overall climate is not as significant as those campaigning to tackle global warming suggest.But, they are often accused of being linked to the fossil fuel industry and therefore having a vested interest in carbon emissions continuing at their current rates.
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.
NASA
