Humans Distribution Affected by the Earth's Orbit

Africa - It was known that humans came out of Africa 150-200 thousand years ago. But the reason for their distribution is still a mystery. Archaeological and genetics some time ago finding that the migration starts at least 100 thousand years ago. Whereas those who are outside Africa may come from groups who left the black continent in the 40-70 thousand years ago.
Previous research also shows that climate change is occurring several times a cause of human migration from Africa to every corner of the world. Every 21 thousand years the earth's orbit and tilt changes called Milankovitch cycles. This phenomenon is also affecting the amount of solar radiation on the earth and in turn affects precipitation levels and population.
According to a study published in the September 22 issue of the journal Nature, the scientists used a computer simulation. They see how changes in orbit, tilt, and the level of solar radiation affect rainfall, temperature, sea level, ice glasikal, vegetation, carbon dioxide levels, even human migration patterns over the last 125 thousand years. They noted that the model predictions are consistent with previous findings about the ancient climate.
Source: Koran Tempo, Monday September 26th 2016, page 12th

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