Boeing has unveiled its new greener jet that promises to use 20% less fuel than other similarly sized aircraft by taking advantage of a new lightweight carbon fibre design. Dubbed the 787 "Dreamliner" the craft promises to carry up to 330 passengers in greater comfort than its predecessors by offering larger windows and less noise.

The launch took place yesterday outside the boeing factory in Everett, Washington.

Close to 700 orders for the new Boeing have already been fulfilled, with Virgin Atlantic leading the way. They have already purchased 15 and will likely exercise options on another eight by the end of this year. They also have the right to buy a further 20, in a deal that could be worth up to $8 billion.

How significant is a 20% increase in efficiency? The Grist has the scoop from one the project's lead designers,

According to Jeff Hawk, who oversees environmental efforts for the model, the 787 consumes about one gallon of fuel per seat per 100 miles of travel -- "less than a typical sedan, and a half to a third the fuel consumption of an SUV."

There's something seriously wrong with our transportation system when, mathematically, you can fly to work more efficiently than you can drive. Perhaps Boeing should start designing our automobiles as well.