BBC: The pace of diplomacy over the division of the Arctic is speeding up, with Russia making the running. It recently agreed with Norway on a maritime boundary in the Barents Sea to end a dispute that had left the region a grey area for potential mineral exploration for 40 years. Shortly afterwards, Russia and Canada accepted that the UN should rule on who owns what part of the Lomonosov Ridge, the continental shelf that could potentially give exploration rights up to the North …