Hydrogen is really not the answer in many places because of its complex physics. Ammonia is probably more useful as fertilizer instead of fuel but whatever. We

Hydrogen is really not the answer in many places because of its complex physics. Ammonia is probably more useful as fertilizer instead of fuel but whatever. We can probably have a win-win situation if we use sodium with sodium fuel cells: https://news.ycombinator.com/item?id=37548917 https://news.ycombinator.com/item?id=37548917 You could even recycle the sodium hydroxide later if you really wanted or neutralize it and dump it while on the way.