Northern climates, offer(ed) predictability for a very long time. In ancient times, you will probably not get human population explosions, but they will thrive

Northern climates, offer(ed) predictability for a very long time. In ancient times, you will probably not get human population explosions, but they will thrive in the North. It was easier for populations to blow up in southern climates but then there were resets(generational disasters) -- specifically famine.