I drove 1800 miles in a Hydrogen Car

You could have touched some critical aspects of hydrogen cars, for example the poor energy content of hydrogen compared to its volume, which leads a loss of 7/8 of the energy to produce the hydrogen, compared to battery electric solutions.

As far as I know, this issue is still unsolved and as long as toyota can't provide free energy, hydrogen is a dead end in personal mobility. There are plenty of industries in dire need for H2, we should not raise their prices, just to reduce the amount of time we refill our cars energy storage. 
If you'd task an engineer today, to design a transportation system for our cities, I don't think they came up with steel boxes, which loiter 95% of they live time, and when they are used, they transport one person. 

Individual Mobility is an idea of the last century, at least if you live in an urban area.
Why own a car, when every few meters you find a car sharing car? 
To tackle climate change, we need smart systems of shared self driving vehicles, which shuttle you from A to B, stopping at C and D to pick up and passengers and let them depart. I think Veratasium made a video on such a company a while ago. 

If we want to get out of this mess, we need to rethink our lives drastically. There are some concepts, like cheap flights, individual mobility, meat consumption, that simply don't scale well with the planet. So we either need a new planet or a new life style.