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Originally Posted by milomilo
Why not? As I understand it, H2 is more weight efficient but less space efficient. So it shouldn't be impossible, the shape of the planes will just have to change.
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The type of pressure vessel required to store the H2 and then the weight of the fuel cells required, make it very impractical. And H2 combustion yields NOx.
Quote:
Originally Posted by milomilo
But we'll see what happens, and we should be giving airlines the right incentives but it seems that air travel is one area that no governments want to put meaningful carbon taxes on.
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There's no real alternative yet, though biofuels are coming on quickly as a sort of interim (especially in blends). And long haul requires global agreements. ICAO is actually working on a global industry wide tax and targets.
The biggest thing that a lot of governments can do is simply build the alternatives to negate short haul flying. There really is no good reason for anybody to fly between Toronto and Montreal or Calgary and Edmonton.