The government of BC (the Canadian province, not the era) is planning to outfit mountain city Whistler with a whole scad of hydro-powered buses. Diesel vehicles are the current norm, but the new buses will run entirely on fuel cells, which produce no harmful emissions.

Small numbers of fuel-cell- powered buses have been used in demonstration projects in cities in Europe and the United States over the past decade.

But the Whistler project, which is forecast to have 20 of the city’s 30 or so buses running on hydrogen power, will be the largest fuel-cell-powered fleet in the world and the first project to make such vehicles the backbone of a public transit system.