Pipe in the sky? | Economist.com

Pipe in the sky? | Economist.com:

"EXTRACTING oil and gas from remote and landlocked places can carry a heavy price tag. Over the next decade $50 billion is expected to be spent building new pipelines over land, according to one estimate. In an attempt to reduce these costs, the oil and gas industry is considering a new approach: airships. These would be used not as giant airborne tankers for carrying oil or gas from wells, but as delivery trucks, carrying materials, equipment and supplies to remote places for laying pipelines."