Why is the South Pole colder than the North Pole?

Much of the temperature difference between the two poles can be explained by their difference in elevation. The North Pole (with monthly average temperatures in winter of around –30 °C) lies on sea ice on the surface of the Arctic Ocean while the South Pole (at around –60 °C) is 2800 metres above sea level on the ice sheets of the Antarctic continent. Act like you know. Link