An interesting conversation around decarbonization in ports is going on at https://collective.energy/topic/29/green-hydrogen-from-sea-w...!
Yes. There are half a dozen countries with mature viable nuclear naval propulsion technology, another half dozen in development. Hundreds of vessels already built.
The fuel cell technology is several decades away from being available to power ships, and we don't have decades to decarbonize the economy. The Arctic ocean is gonna be totally melted for the first time in human history in about a decade or so, and from there on the feedback loops are gonna make the race against global warming even more hopeless than it already is.
Go nuclear.
I'm currently building a BB software \in c# .net core for my own use and with plans to OS it, and your site gave me some ideas and made me question some of the choices I've made. I've been adament agains AJAXifying the navigation between pages, but seeing how well it works on NodeBB I am having second thoughts.
https://news.ycombinator.com/user?id=psychobunny did a great job.