[ZenGum]

Bigv ... absolutely.

If we could drill for (pure) hydrogen it would be an energy source. Well, i suppose we could drill for it, we just wouldn't find any.

And yes, if you make hydrogen using fossil fuels, you're just shifting where the CO2 comes out.

If you make hydrogen using solar electricity, then you're on a winner.

Transmission is the main stumbling block. There is enough sunlight falling on a small portion of the Sahara to power all of Europe. The trick is getting the energy to where we want it, when we want it, without losing so much as to make it too expensive.