> Again: Petrol does not mollecularly diffuse through solid material and embrittle it in the process. Don't use metal. If you do replace it periodically - let

> Again: Petrol does not mollecularly diffuse through solid material and embrittle it in the process. Don't use metal. If you do replace it periodically - let's not pretend batteries last forever either. A bit of leakage is acceptable. Did you know that natural gas that already in widespread use today leaks as well. https://www.sciencedirect.com/science/article/abs/pii/S0360319919347275 https://www.sciencedirect.com/science/article/abs/pii/S03603... Come to think of it, most of the problems we have with hydrogen we also have with natural gas - which we dealt with just fine; we even had natural gas powered cars, https://en.wikipedia.org/wiki/Natural_gas_vehicle https://en.wikipedia.org/wiki/Natural_gas_vehicle Hydrogen storage is an active field of research. https://en.wikipedia.org/wiki/Hydrogen_storage https://en.wikipedia.org/wiki/Hydrogen_storage I say we keep our options open. It's worth further exploring the use of hydrogen as a energy storage and transportation medium.