In their Hydrogen powered 'lighter than air' aircraft while we here start to worry about
Aircraft Emmissions of the CO2 sort. We are constantly thinking of ways to use Hydrogen on the ground, but still have the taboo against Hydrogen power+levitation of the air. This is singularly attributable to the Hindenberg. Similarly, Hydro power is also taboo at least for green groups that spent decades fighting against them. What green group would suddenly turn araound and say, gee.. if we consider the carbon credits, maybe Gordon-Franklin wasn't such a bad idea! If the first hydrogen powered bus crashed and burst into flames, would we never consider hydrogen power for road vehicles again?