Hydrogen fuel cell: do hydrogen cars have a future?

It’s the most abundant element on earth. It was powering engines in 1807, and, with the right extraction methods it’s as clean as fuels come. Yet hydrogen still hasn’t taken off in the automotive sector. Most manufacturers are experimenting with the technology and some have started producing small numbers of vehicles, but we’re still years from a mass roll-out. The sceptics say it will never happen.
One reason for the lack of hydrogen cars on our streets is the growing up