Airfreight could be transported in a helium airship powered by solar energy, if the concept developed by a UK scientist becomes reality.
Sir David King, who a climate change representative for the UK Government and a former chief scientist, introduced his idea at a recent conference in Abu Dhabi.
He presented the concept for an aluminium airship which is being developed by a manufacturing company VariaLift, which is currently raising funds to develop a prototype.
The airship is 250 metres in length and 150 metres wide, and as high as a 12 storey building.
Built on an aluminium frame, it would contain 12 bags filled with helium, with a maximum payload of 500 tonnes.
Speeds of up to 300 knots could be achieved through the use of solar panels.