[Ostfriese]

Originally Posted by Hitman

The energy needed for getting that hydrogen is way more than the one the hydrogen releases when burning.

This goes for just any fuel. You'll never get the energy out that got in.

So I state again, petrol is still the least polluting fuel possible until we go with the Icelanders route of solar power hydrogen fueling stations.

Only if you dramatically limit your point of view. Carbondioxide causes far more damage than the products of burning hydrogen does, as well as spilling petrol and its derivates.
And I haven't even started about all those fools and idiots who waste huge amounts of petrol.

And you're wrong in term of producing ethanol as well. It doesn't necessarily require corn, wheat, rye or barley. You can use basically any biological material containing starch and/or sugars to produce alcohol. You wouldn't want to drink it (doesn't tase like vodka), but it's good enough as fuel.