A group of academics from the University of Lincoln, UK, believe airships may be the 'green' answer to the future growth of aviation. The Multibody Advanced Airship for Transport (MAAT) project, made up of eight nations and led by the Universita di Modena e Reggio Emilia in Italy, is working to design a cruiser which can travel across the globe on a set route. Smaller feeder ships carrying people and goods would then be able to dock onto the cruiser while it is still moving. To provide sufficient electric power during the day, photovoltaic arrays, mounted on the upper airship surface, harvest sunlight. What do you think? Will airships be the future of "green" aviation?