One cannot help but notice that humanity is concentrated in the temperate climate regions where some degree of a cold winter occurs. Notice that there is a general trend of movement of political power from subtropical to that of temperate climates. And from China to Russia.
Political power seems to concentrate in the temperate belts of the world.
Temperate climate seems to confer some advantage over other regions that are hotter or colder than the temperate climate. The above, if true would have predicted in prehistorical times that Europe, because it is a broad band of temperate climate would eventually come to dominate Africa and the Middle East and Asia. And that eventually the US with its broad temperate climate would come to dominate both North and South America. If the above is true, would predict that in the future, in a power struggle between Russia and China, that Russia with its larger temperate climate geography would win. The activity and pace of humans in heat is far less than that in a cooler climate.