This episode has a slightly different format. I discuss with Klaus Dodds, my co-host, and Mia Bennett of the University of Washington, their new book 'Unfrozen: the fight for the future of the Arctic'. It starts by asking both Mia and Klaus how they got interested in the Arctic and how it is defined. As they note, the Arctic is often defined as those areas north of 66 degrees of latitude (the Arctic circle), where the sun never sets in mid summer and never rises in the depth of winter. Some definitions go down to 60 degrees. The Arctic territory forms part of 8 countries: Russia is the largest with about 50 percent, followed by Canada, then Denmark (Greenland) and the USA, but it also includes Finland, Norway, Sweden and Iceland. Together these countries are permanent members of the Arctic council. The Arctic is inhabited by about 4 million people, mostly in Russia, of whom about a million are indigenous peoples, the others are involved in mining, resource exploitation, military, research etc. But other countries, notably India and China have also become interested in the Arctic, and China now has 5 icebreakers and is interested in the potential of the Arctic route for goods transport. What is clear is that the Arctic is under threat in a number of ways, notably from global warming and parts of the Arctic are warming at 3-4 times or more of the global average. This is causing major changes in vegetation, settlement and forms of living from reduction in ice cover. It also has big implications beyond the Arctic in terms of warming waters. The reduction in ice has important geo-political implications with different countries seeing new possibilities. Klaus and Mia suggest there are three major intertwined issues for the Arctic - that it is becoming increasingly climatically and ecologically endangered, that it faces increasing pressure for resource exploitation and it may become the site for more strategic conflict. The arctic is no longer just a remote place for polar bears and explorers. It is increasingly linked into the modern world in many different ways.