The effect of the Arctic cooling is global primarily because of the oceans. The oceans affect every continent and when a glaciation starts in the NH, the global sea levels start to drop. At the end of the Eemian, the sea levels dropped more than 20 m (66ft) in a period of 5,000 years after the 65N summer insolation anomaly went negative 120,000 years ago. The glaciers in the NH were growing so fast 120,000 years ago that the world's oceans dropped as much as a six story building. That is what I consider genuine climate change.
