As we on the side of scientific accuracy have been pointing out for a long time the climate is cyclical and takes vast amounts of time to complete a cycle. We now have good evidence that there was significantly less ice in the Arctic 6000 years ago. In fact there is good evidence that it was ice free!
NGU - Less ice in the Arctic Ocean 6000-7000 years ago
NGU - Less ice in the Arctic Ocean 6000-7000 years ago