But it's going to be a long time before we see it widely adopted in automobiles: It is coming faster than you think--
https://www.cnbc.com/2019/02/26/how-toyota-is-helping-japan-create-a-hydrogen-fueled-society.htm
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Explainer: Why Asia's biggest economies are backing hydrogen fuel cell cars
Japan Sees Big Future in Hydrogen Cars
Japan Fuel Cell Developments — Fuel Cell & Hydrogen Energy Association
https://www.cnbc.com/2019/02/26/how-toyota-is-helping-japan-create-a-hydrogen-fueled-society.htm
l
Explainer: Why Asia's biggest economies are backing hydrogen fuel cell cars
Japan Sees Big Future in Hydrogen Cars
Japan Fuel Cell Developments — Fuel Cell & Hydrogen Energy Association