The world’s first LNG powered tug Motor Tug Borgøy has docked in the port of Zeebrugge to load LNG fuel.

Borgøy is the first tug in the world sailing on liquefied natural gas. The shipping industry is facing tough emission standards and this tug emits nearly thirty percent less CO 2 and up to ninety percent less nitrogen oxide and particulate matter than traditionally built tugs.

See: http://www.maritime-executive.com/article/Zeebrugge-Performs-First-Bunkering-of-LNGFueled-Tug-2014-02-18/