According to Ralph Sylvestersen, Special Adviser for maritime regulation and international affairs at the Danish Maritime Authority and committees at the U.N.'s International Labor Organization and International Maritime Organization, and principal ship surveyor, Greenland, Denmark easily surpasses the United States in per-capita carbon emissions. Click the title of this post for his original piece.
Denmark boasts a high level of growth but steady energy consumption. Sylvestersen notes that while shipping is included in the gross domestic product, its energy consumption isn't included in national figures. Denmark owns 10% of the world's shipping fleet, including the high-speed container ships of the Maersk Line and others. In 2006, the shipping industry used more than twice as much energy as the entire country's domestic consumption.
Recalculating with figures from the Danish International Shipping Industry, Danish per-capita carbon dioxide (CO2) emissions are 32.5 tons/year. That compares to 19.5 tons/year in the United States.