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Greenland temperatures over the last 100,000 years

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the chart depicts GREENLANDS temperatures.
and I was right we are in the warmest era in the last 100,000 years.

the same findings in my previous post is depicted in this chart.

It is in my opinion that the changes to mens skulls were due to the colder climate.
they may have even experienced an limited ability to perform some mental task due to the shrinking of the brain.
the brain would keep the most necessary parts active and it would shut down or incapicitate un-necessary mental functions other than those needed for survival.

in much the same way as a persons body functions are shut down while he is freezing or undergoing hypothermia.