It's roughly the size of a soccer field, which makes sense given this kite's enormous task of towing a 10,000-tonne cargo ship. Later this month, the Beluga SkySail is set to cross the Atlantic Ocean assisted by the wind - the first time in over 100 years a large cargo ship has attempted this. If it is successful, the kite will reduce 10 to 15 per cent of the heavy oil fuel normally burned during a typical journey. A spokesperson for the Beluga shipping line is hopeful the test will be successful and shape the future of green shipping.

"This is a serious attempt to reduce bunker (fuel) costs and polluting emissions," said Christine Bornkessel. "The kite will be used whenever it is possible on the voyage, and we are convinced it will revolutionise cargo shipping. We would consider fitting them to all our ships."

The initial kite used will measure 160-square meters, but will expand in size with time, creating the potential to save 35 per cent of fuel.

Shipping is responsible for the release of approximately 800 million tonnes of carbon dioxide annually - roughly four per cent of man-made emissions globally. The design is not meant to replace engines and experts are still trying to determine the implications of high wind and the potential outcome if the kite landed in the ocean.

» The Age