Read deeper into what i posted…Water for example…covers a lil over 70% of the earth…find a way to efficiently extract the hydrogen out of water and you have a extremely cheap gas alternative…but also…if there is a car accident I’m sure the area would get the effects of a nuke going off…if you think logically…and calculate how much hydrogen could be extracted just from the water that covers the earth…then it becomes the most abundant…just electrolysis is slow as hell and there isn’t really a good way to split water at higher speeds right now