Why can't you just use the search function?
https://trueleft.createaforum.com/human-evolution/temperature-effects/msg2459/#msg2459vdare.com/articles/john-derbyshire-at-amren-the-arctic-alliance-revisited
I divide the human race into Arctics and non-Arctics on paleoanthropological grounds. So Arctics are those present-day races whose remote ancestors inhabited the forests and tundra of northern Eurasia—the whites and the yellows, to a first approximation. In my book We Are Doomed I used the synonym “Ice People.”
In the world today, the Arctics exhibit two characteristics that separate them quite clearly from non-Arctics, or “Sun People.”.
**** YOU. We are Sun People.
Basically, it is an enemy narrative that wants to persuade "yellows" to feel closer to "whites" (who are in fact their oppressors) than to other "non-whites" (who are in fact their fellow victims of oppression at the hands of "whites").