The Arctic, long described as the world's last frontier, is quickly becoming our first frontierthe front line in a world of more diffuse power, sharper geopolitical competition, and deepening interdependencies between people and nature. A space of often-bitter cold, the Arctic is the fastest-warming place on earth. It is humanity's canary in the coal minean early warning sign of the world's climate crisis.The Arctic regime has pioneered many innovative means of governance among often-contentious state and non-state actors. Instead of being the last white dot on the map, the Arctic is where the contours of our rapidly evolving world may first be glimpsed. In this book, scholars and practitionersfrom Anchorage to Moscow, from Nuuk to Hong Kongexplore the huge political, legal, social, economic, geostrategic and environmental challenges confronting the Arctic regime, and what this means for the future of world order.