evidence: Nevertheless, for some five decades, Canada and Denmark have squabbled — mostly, but not always, politely — over the not-very-exciting Hans Island, a 0.5-square-mile mass in the Kennedy Channel of the Nares Strait that’s home to neither vegetation nor wildlife. The craggy outcropping — Tartupaluk in Inuit — lies between Canada’s Ellesmere Island and Greenland, an autonomous territory of Denmark. [...] The dispute dates back to 1973, when Canadian and Danish diplomats were drawing up a maritime boundary in the Arctic. The line cut straight through Hans Island. The diplomats left the question of what to do about it unresolved. [...] Lawmakers in Canada have occasionally pointed to the dispute over Hans Island as an example of the government of the day doing little to defend its interests in the Arctic.