I have just read an article on passenger airships but these may or may not be the future.It is surely only a matter of time however, before they are used for hauling heavy freight across the world.
Did the Germans not use them in World War One for taking Wolfram (tungsten ore) out of Afghanistan, do I recall from the dim recesses of my memory?
They use little fuel; can carry very heavy payloads; do not need railtracks of thousands of miles nor lengthy runways; the modern ones cannot explode.
Admittedly, they are rather cumbersome, slow, currently need large crews and can be susceptible to bad weather but ....
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