Evan Guido | Special to the Herald-TribuneGreenland is the largest island on Earth, covering roughly 836,000 square miles, about three times the size of Texas and larger than Madagascar. Yet fewer than 57,000 people live there, clustered along an icy coastline with no roads connecting towns. That contrast – vast scale, tiny population – defines Greenland’s economic story, one shaped by fishing boats, foreign subsidies, and moments when this frozen place quietly mattered to the outcome of world wars.Greenland’s economy is small by global standards but sizable relative to its population. In 2021, Greenland’s gross domestic product totaled about 20.3...