Sounds like BS to me

[Troll]

Surely it would be more efficient to cut the cows out of the loop and use the grass

You can already get ethanol & diesel from grass

[Mich the Tester]

Surely it would be more efficient to cut the cows out of the loop and use the grass

I imagine you could use grass in an industrial process that mimics bovine digestive systems, tap the methane and use the solid waste as fertiliser or even solid fuel. You don't need cows to make cow tulip.

[Spacecadet]

Surely it would be more efficient to cut the cows out of the loop and use the grass

[DodgyAgent]

BBC News - TEDGlobal: Visions of the future of flying

Mr Schaefer thinks powering planes by gathering and liquefying cow flatulence would be a great idea if it could be made to work.

There is enough on CUK to keep Ryan air going for 50 years

[doodab]

BBC News - TEDGlobal: Visions of the future of flying

Mr Schaefer thinks powering planes by gathering and liquefying cow flatulence would be a great idea if it could be made to work.