When it comes to the next generation of passenger-only ferries, the future is green. West Coast ship makers are in the process of building vessels that are not only powerful enough to transport people and vehicles, but are constructed with advanced sustainability goals in mind, the kind of impact that can mean cleaner air in the long run. Here’s a look at what’s being built: Building Sea Change The name Sea Change is apropos for a ferry poised to advance the potential commercialization of fuel-cell powered marine vessels globally. Bellingham, Washington-based All American Marine has been at work on that…