Russia launched a nuclear-powered icebreaker on Saturday, part of an ambitious programme to renew and expand its fleet of the vessels in order to improve its ability to tap the Arctic’s commercial potential.

The ship, dubbed the Ural and which was floated out from a dockyard in St Petersburg, is one of a trio that when completed will be the largest and most powerful icebreakers in the world.

Russia is building new infrastructure and overhauling its ports as, amid warmer climate cycles, it readies for more traffic via what it calls the Northern Sea Route (NSR) which it envisages being navigable year-round.

The Ural is due to be handed over…