Not my thing I know they have hydrogen stations in California.
And I'm not a person who gives a rat's ass about emissions within reason so I was a bit incorrect there is some use of natural gas to produce the hydrogen
The current cars in production are hydrogen powered electric cars
I think the big advantage of hydrogen is it be easy to convert gas stations to have both hydrogen and gasoline and it only takes a few minutes to fill up hydrogen car.....this is what I was told by a techie Toyota technician